{"id":1096291,"date":"2020-12-23T09:22:30","date_gmt":"2020-12-23T17:22:30","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1096291"},"modified":"2022-11-25T10:53:58","modified_gmt":"2022-11-25T18:53:58","slug":"create-relative-risk-surface","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface","title":{"rendered":"Create a COVID-19 relative risk surface"},"author":6771,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[23341,28211],"tags":[585551,656271,25071,100192,263952],"industry":[],"product":[36801],"class_list":["post-1096291","blog","type-blog","status-publish","format-standard","hentry","category-analytics","category-health","tag-covid-19","tag-epidemiology","tag-learn-arcgis","tag-learn-by-doing","tag-risk-analysis","product-insights"],"acf":{"short_description":"Learn how to use the spatial analysis capabilities in ArcGIS Insights to create a COVID-19 relative risk surface.","flexible_content":[{"acf_fc_layout":"content","content":"

Epidemiologists use relative risk surfaces to compare the risk of disease or illness over an area of interest. This lesson explains how to use the spatial analysis capabilities in ArcGIS Insights to create a COVID-19 relative risk surface.<\/em><\/p>\n

A relative risk surface (also called a risk ratio surface) is an important tool in determining the relative severity of an infectious disease outbreak across a study area. The surface is created by calculating the ratio between two density surfaces: the case data is the numerator and the control data is the denominator.<\/p>\n

Unlike a density surface, a relative risk surface incorporates a control as a way to normalize the case data. In epidemiology, a relative risk surface is created using disease occurrences as the case and a control like total population.<\/p>\n

In this lesson, you will use Calculate Density Ratio<\/a> in ArcGIS Insights to create a relative risk surface for New York City, using the confirmed number of COVID-19 cases and population.<\/p>\n

This workflow was last tested on November 25, 2022.<\/em><\/p>\n"},{"acf_fc_layout":"storymap","title":"","description":"","static":false,"storymap_url":"https:\/\/insights.arcgis.com\/index.html#\/embed\/3d67ca7c86314638bb5e7b2bdafe1f66<\/a>"},{"acf_fc_layout":"content","content":"

Step 1: Open Insights and add your data<\/h2>\n

In the first step, you will find your data and add it to a workbook in Insights.<\/p>\n

1. Follow the link to the COVID-19 data by ZIP code<\/a> dataset (data-by-modzcta.csv) from New York City\u2019s Department of Health. To download the data from GitHub, click Raw<\/strong>, then right-click the raw data and choose Save As<\/strong>.<\/p>\n

Note:<\/strong><\/p>\n

The data in this example was downloaded on June 23, 2022. Your results may differ from what is shown.<\/p>\n"},{"acf_fc_layout":"sidebar","content":"

Don\u2019t have Insights in your organization? Get a free trial<\/a>!<\/p>\n","image_reference":false,"layout":"standard","image_reference_figure":"","snippet":"","spotlight_name":"","section_title":"","position":"Right","spotlight_image":false},{"acf_fc_layout":"content","content":"

2. Open Insights in ArcGIS Online<\/a>. You can also use your Insights in ArcGIS Enterprise or Insights desktop deployment.<\/p>\n

If this is your first time signing in to your Insights account, the Welcome to Insights<\/strong> window appears.<\/p>\n

3. If necessary, in the Welcome to Insights<\/strong> window, click Skip<\/strong>.<\/p>\n

4. Click the Workbooks <\/strong>tab.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":826831,"id":826831,"title":"1_WorkbooksTab","filename":"1_WorkbooksTab.jpg","filesize":6622,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/use-chime-arcgis-insights\/1_workbookstab","alt":"The Workbooks tab on the Insights home page","author":"6771","description":"","caption":"","name":"1_workbookstab","status":"inherit","uploaded_to":826531,"date":"2020-04-20 17:32:42","modified":"2020-04-20 17:33:09","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":241,"height":331,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","medium-width":190,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","medium_large-width":241,"medium_large-height":331,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","large-width":241,"large-height":331,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","1536x1536-width":241,"1536x1536-height":331,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","2048x2048-width":241,"2048x2048-height":331,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","card_image-width":241,"card_image-height":331,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/1_WorkbooksTab.jpg","wide_image-width":241,"wide_image-height":331}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

5. Click New workbook<\/strong>.<\/p>\n

A workbook is created and the Add to page<\/strong> window appears. Your content is shown by default. You will upload the CSV file downloaded in the first step.<\/p>\n

6. In the Add to page<\/strong> pane, click Upload file<\/strong>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":826841,"id":826841,"title":"2_UploadFile","filename":"2_UploadFile.jpg","filesize":8025,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/use-chime-arcgis-insights\/2_uploadfile","alt":"Upload a file to your workbook","author":"6771","description":"","caption":"","name":"2_uploadfile","status":"inherit","uploaded_to":826531,"date":"2020-04-20 17:33:24","modified":"2020-04-20 17:33:36","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":249,"height":308,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","medium-width":211,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","medium_large-width":249,"medium_large-height":308,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","large-width":249,"large-height":308,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","1536x1536-width":249,"1536x1536-height":308,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","2048x2048-width":249,"2048x2048-height":308,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","card_image-width":249,"card_image-height":308,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/2_UploadFile.jpg","wide_image-width":249,"wide_image-height":308}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

7. Browse to the CSV of COVID-19 cases in New York City and open it.<\/p>\n

You will also add datasets from ArcGIS Living Atlas of the World to help you create your relative risk surface.<\/p>\n

8. Click the Living Atlas<\/strong> tab.<\/p>\n

The first dataset you will add is a dataset containing centroids for ZIP codes across the United States. That dataset will be used to add locations to your CSV file.<\/p>\n

9. In the Search<\/strong> box, type ZIP<\/u> and press Enter<\/strong>.<\/p>\n

10. Select USA ZIP Code Points<\/strong> by esri_dm.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633022,"id":1633022,"title":"ZIP_code_points","filename":"ZIP_code_points-1.png","filesize":10655,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/zip_code_points-2","alt":"The USA ZIP Code Points dataset from Living Atlas","author":"6771","description":"","caption":"","name":"zip_code_points-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 18:11:27","modified":"2022-06-23 18:11:35","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":623,"height":213,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","medium-width":464,"medium-height":159,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","medium_large-width":623,"medium_large-height":213,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","large-width":623,"large-height":213,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","1536x1536-width":623,"1536x1536-height":213,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","2048x2048-width":623,"2048x2048-height":213,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","card_image-width":623,"card_image-height":213,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/ZIP_code_points-1.png","wide_image-width":623,"wide_image-height":213}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

You will also add block group points. The population field from the block group points will be used as the denominator in the density ratio.<\/p>\n

11. In the Search <\/strong>box, type Block points <\/u>and press Enter<\/strong>.<\/p>\n

12. Select USA Census Block Points<\/strong> by esri_dm.<\/p>\n

There are three datasets in the Selected Data<\/strong> pane.<\/p>\n

13. Click Add<\/strong> to add the three datasets to your workbook.<\/p>\n

The three datasets are added to your workbook and two maps are created. The maps show the points for each ZIP code and block group across the United States.<\/p>\n

You don\u2019t need these maps, so you\u2019ll delete them.<\/p>\n

14. On the first map, click the Card options<\/strong>\u00a0button, then click the Delete\u00a0<\/strong>button.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632512,"id":1632512,"title":"delete_map","filename":"delete_map-1.png","filesize":53909,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/delete_map-2","alt":"Delete a map card","author":"6771","description":"","caption":"","name":"delete_map-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:01:18","modified":"2022-06-23 17:01:27","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":445,"height":424,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","medium-width":274,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","medium_large-width":445,"medium_large-height":424,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","large-width":445,"large-height":424,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","1536x1536-width":445,"1536x1536-height":424,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","2048x2048-width":445,"2048x2048-height":424,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","card_image-width":445,"card_image-height":424,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/delete_map-1.png","wide_image-width":445,"wide_image-height":424}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The map is removed from the page.<\/p>\n

15. Repeat the previous step with the second map.<\/p>\n

There are no maps on the page.<\/p>\n

In the next step, you will enable location on the COVID-19 data so you can use it to make a relative risk surface.<\/p>\n

Step 2: Add locations to your COVID-19 data<\/h2>\n

Before you can create a relative risk surface, you must have a point dataset. The COVID-19 data you downloaded in step 1 does not have a location field, so you will use the ZIP code points to create one.<\/p>\n

1. Click the arrow next to the data-by-modzcta<\/strong> dataset in the data pane.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632492,"id":1632492,"title":"expand-fields","filename":"expand-fields-1.png","filesize":2717,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/expand-fields-2","alt":"Expand the dataset","author":"6771","description":"","caption":"","name":"expand-fields-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 16:55:44","modified":"2022-06-23 16:55:52","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":301,"height":186,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1-213x186.png","thumbnail-width":213,"thumbnail-height":186,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","medium-width":301,"medium-height":186,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","medium_large-width":301,"medium_large-height":186,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","large-width":301,"large-height":186,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","1536x1536-width":301,"1536x1536-height":186,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","2048x2048-width":301,"2048x2048-height":186,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","card_image-width":301,"card_image-height":186,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/expand-fields-1.png","wide_image-width":301,"wide_image-height":186}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The fields in the dataset are listed. There is no location field, but there is a field called MODIFIED_ZCTA (ZIP Code Tabulation Area). You will use that field, along with the ZIP code points, to create a location field.<\/p>\n

2. On the data-by-modzcta<\/strong> dataset, click the Dataset options<\/strong> button, then click Enable location<\/strong>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1097111,"id":1097111,"title":"enable_location","filename":"enable_location.png","filesize":12929,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/enable_location","alt":"Enable location on the COVID-19 data","author":"6771","description":"","caption":"","name":"enable_location","status":"inherit","uploaded_to":1096291,"date":"2020-12-23 12:34:38","modified":"2020-12-23 12:35:03","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":483,"height":252,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","medium-width":464,"medium-height":242,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","medium_large-width":483,"medium_large-height":252,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","large-width":483,"large-height":252,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","1536x1536-width":483,"1536x1536-height":252,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","2048x2048-width":483,"2048x2048-height":252,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","card_image-width":483,"card_image-height":252,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location.png","wide_image-width":483,"wide_image-height":252}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Enable location<\/strong> pane appears.<\/p>\n

3. In the Enable location <\/strong>pane, click the\u00a0Geography <\/strong>tab.<\/p>\n

Enabling location by geography allows you to take the locations from one dataset and apply them to another dataset.<\/p>\n

4. For the Location fields<\/strong> parameter, choose MODIFIED_ZCTA<\/strong>. For the Matching geography level<\/strong> parameter, choose zip_usa<\/strong>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632472,"id":1632472,"title":"enable_location_pane","filename":"enable_location_pane-1.png","filesize":6164,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/enable_location_pane-2","alt":"Enable location by geography","author":"6771","description":"","caption":"","name":"enable_location_pane-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 16:48:25","modified":"2022-06-23 16:48:35","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":262,"height":387,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","medium-width":177,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","medium_large-width":262,"medium_large-height":387,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","large-width":262,"large-height":387,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","1536x1536-width":262,"1536x1536-height":387,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","2048x2048-width":262,"2048x2048-height":387,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","card_image-width":262,"card_image-height":387,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/enable_location_pane-1.png","wide_image-width":262,"wide_image-height":387}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

5. Click Run<\/strong>.<\/p>\n

A location field called zip_usa<\/strong> is added to the data-by-modzcta<\/strong> dataset.<\/p>\n

6. Drag the data-by-modzcta<\/strong> dataset onto the page and drop it on the Map<\/strong> drop zone. Alternatively, you can select the\u00a0zip_usa<\/strong> field then click the\u00a0Map<\/strong> button above the data pane.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1097131,"id":1097131,"title":"create_map","filename":"create_map.png","filesize":30519,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/create_map","alt":"Create a map","author":"6771","description":"","caption":"","name":"create_map","status":"inherit","uploaded_to":1096291,"date":"2020-12-23 12:38:38","modified":"2020-12-23 12:38:52","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":601,"height":353,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","medium-width":444,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","medium_large-width":601,"medium_large-height":353,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","large-width":601,"large-height":353,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","1536x1536-width":601,"1536x1536-height":353,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","2048x2048-width":601,"2048x2048-height":353,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","card_image-width":601,"card_image-height":353,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_map.png","wide_image-width":601,"wide_image-height":353}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

A map appears with points located within each ZIP code in New York City.<\/p>\n

In the next section you will create a relative risk surface.<\/p>\n

Step 3. Use Calculate Density Ratio to create a relative risk surface<\/h2>\n

In Insights, a relative risk surface is created using Calculate Density Ratio. To calculate a density ratio, you must have two point datasets that function as the numerator and the denominator. In this lesson, the numerator is the number of cases per ZIP code and the denominator is the population by block group.<\/p>\n

Before you can create the relative risk surface, you must add the block group points to the map.<\/p>\n

1. From the data pane, drag the blockpop<\/strong>\u00a0dataset to the map and drop it in the Add new layer<\/strong> drop zone.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632542,"id":1632542,"title":"add_layer_to_map","filename":"add_layer_to_map-1.png","filesize":43314,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/add_layer_to_map-2","alt":"Add a second layer to the map","author":"6771","description":"","caption":"","name":"add_layer_to_map-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:04:40","modified":"2022-06-23 17:06:07","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":600,"height":353,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","medium-width":444,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","medium_large-width":600,"medium_large-height":353,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","large-width":600,"large-height":353,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","1536x1536-width":600,"1536x1536-height":353,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","2048x2048-width":600,"2048x2048-height":353,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","card_image-width":600,"card_image-height":353,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/add_layer_to_map-1.png","wide_image-width":600,"wide_image-height":353}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The layer contains a point for each block group in the United States. Since you are creating a relative risk surface for New York City, you will filter the dataset to only the necessary block groups.<\/p>\n

2. Click the arrow next to the blockpop<\/strong>\u00a0dataset in the data pane to expand the dataset.<\/p>\n

The dataset includes state abbreviations, county Federal Information Processing Standards (FIPS) codes, and 2020 population fields. You will create an expression-based advanced filter using the state abbreviation and county FIPS.<\/p>\n

3. For the blockpop<\/strong>\u00a0dataset, click the Dataset options<\/strong> button, then choose Advanced filter<\/strong> from the menu.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633392,"id":1633392,"title":"create_advanced_filter","filename":"create_advanced_filter-1.png","filesize":6865,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/create_advanced_filter-2","alt":"Open the Advanced filter pane","author":"6771","description":"","caption":"","name":"create_advanced_filter-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 19:14:37","modified":"2022-06-23 19:14:49","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":535,"height":253,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","medium-width":464,"medium-height":219,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","medium_large-width":535,"medium_large-height":253,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","large-width":535,"large-height":253,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","1536x1536-width":535,"1536x1536-height":253,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","2048x2048-width":535,"2048x2048-height":253,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","card_image-width":535,"card_image-height":253,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/create_advanced_filter-1.png","wide_image-width":535,"wide_image-height":253}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Advanced filter<\/strong> pane appears.<\/p>\n

4. In the Advanced filter <\/strong>pane, type or copy and paste the following expression:<\/p>\n

STATE_ABBR=\"NY\" AND (COUNTY_FIPS=\"005\" OR COUNTY_FIPS=\"061\" OR COUNTY_FIPS=\"047\" OR COUNTY_FIPS=\"081\" OR COUNTY_FIPS=\"085\")<\/code><\/p>\n

The expression filters the block groups to Bronx, New York, Kings, Queens, and Richmond counties in New York state.<\/p>\n

5. Click Apply<\/strong>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632732,"id":1632732,"title":"block_group_filtered","filename":"block_group_filtered-1.png","filesize":54117,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/block_group_filtered-2","alt":"Block groups filtered to New York City","author":"6771","description":"","caption":"","name":"block_group_filtered-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:19:26","modified":"2022-06-23 17:19:35","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":400,"height":364,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","medium-width":287,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","medium_large-width":400,"medium_large-height":364,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","large-width":400,"large-height":364,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","1536x1536-width":400,"1536x1536-height":364,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","2048x2048-width":400,"2048x2048-height":364,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","card_image-width":400,"card_image-height":364,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/block_group_filtered-1.png","wide_image-width":400,"wide_image-height":364}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The filter is applied to the block group point dataset and the map zooms to New York City.<\/p>\n

Next, you will run Calculate Density Ratio.<\/p>\n

6. Click the map to activate it, if necessary, then click the Action\u00a0<\/strong>button.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632752,"id":1632752,"title":"action_button","filename":"action_button-1.png","filesize":1664,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/action_button-2","alt":"The Action button","author":"6771","description":"","caption":"","name":"action_button-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:21:25","modified":"2022-06-23 17:21:32","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":198,"height":162,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","thumbnail-width":198,"thumbnail-height":162,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","medium-width":198,"medium-height":162,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","medium_large-width":198,"medium_large-height":162,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","large-width":198,"large-height":162,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","1536x1536-width":198,"1536x1536-height":162,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","2048x2048-width":198,"2048x2048-height":162,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","card_image-width":198,"card_image-height":162,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/action_button-1.png","wide_image-width":198,"wide_image-height":162}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Analytics<\/strong> pane appears.<\/p>\n

7. On the Analytics<\/strong> pane, click Calculate Density Ratio<\/strong>.<\/p>\n

The Calculate Density Ratio<\/strong> pane includes inputs for the numerator and denominator, plus additional options you can expand.<\/p>\n

8. For Numerator<\/strong>, expand the menu and choose data-by-modzcta<\/strong>. For Denominator<\/strong>, verify that blockpop<\/strong>\u00a0is chosen.<\/p>\n

9. Click Additional options<\/strong> to expand the optional parameters.<\/p>\n

The additional options include Weight<\/strong>, Search radius (bandwidth)<\/strong>, and Cell size<\/strong> parameters. You will update the Weight <\/strong>parameter so that the number of COVID-19 cases and the population are used to calculate the density ratio.<\/p>\n

10. In the Weight <\/strong>parameter, for Numerator<\/strong>, expand the menu and choose COVID_CASE_COUNT<\/strong>.<\/p>\n

The COVID_CASE_COUNT <\/strong>field will be used to calculate density for the data-by-modzcta<\/strong> dataset.<\/p>\n

11. In the Weight <\/strong>parameter, for Denominator<\/strong>, expand the menu and choose POPULATION_2020<\/strong>.<\/p>\n

The POPULATION_2020<\/strong> field will be used to calculate density for the blockpop<\/strong>\u00a0dataset.<\/p>\n

12. Click Run<\/strong>.<\/p>\n

A result dataset called Density Ratio 1<\/strong> appears in the data pane. The density layer is added to the map beneath the two point layers. You will remove the points from the map so you can see the relative risk surface.<\/p>\n

13. In the layer list, click the arrow next to the blockpop <\/strong>layer.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632792,"id":1632792,"title":"open_layer_options","filename":"open_layer_options-1.png","filesize":11172,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/open_layer_options-2","alt":"Open the layer options pane","author":"6771","description":"","caption":"","name":"open_layer_options-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:28:20","modified":"2022-06-23 17:28:47","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":226,"height":176,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1-213x176.png","thumbnail-width":213,"thumbnail-height":176,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","medium-width":226,"medium-height":176,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","medium_large-width":226,"medium_large-height":176,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","large-width":226,"large-height":176,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","1536x1536-width":226,"1536x1536-height":176,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","2048x2048-width":226,"2048x2048-height":176,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","card_image-width":226,"card_image-height":176,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/open_layer_options-1.png","wide_image-width":226,"wide_image-height":176}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Layer options<\/strong> pane appears.<\/p>\n

14. Click the Delete<\/strong> button to remove the block group points from the map.<\/p>\n

15. Repeat the previous two steps for the data-by-modzcta\u00a0<\/strong>layer.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633492,"id":1633492,"title":"density_ratio_map","filename":"density_ratio_map-1.png","filesize":75471,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/density_ratio_map-2","alt":"The density ratio map","author":"6771","description":"","caption":"","name":"density_ratio_map-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 19:20:44","modified":"2022-06-23 19:20:53","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":402,"height":366,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","medium-width":287,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","medium_large-width":402,"medium_large-height":366,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","large-width":402,"large-height":366,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","1536x1536-width":402,"1536x1536-height":366,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","2048x2048-width":402,"2048x2048-height":366,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","card_image-width":402,"card_image-height":366,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/density_ratio_map-1.png","wide_image-width":402,"wide_image-height":366}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The density layer is the only layer remaining on the map.<\/p>\n

The default classification doesn\u2019t give you very much information about the relative risk throughout the city. In the next section, you will update the classification.<\/p>\n

Step 4. Change the map classification<\/h2>\n

Classification is the process of grouping data values into ranges and representing each range with a color or symbol. In Insights, density and density ratio surfaces are classified by the equal interval classification type using 10 classes. Equal interval classification emphasizes the amount of data within each class relative to each other. This classification style is not a good choice for highly skewed data, like the density values seen in the density ratio calculation. You will update the classification so that it accurately represents the skewed values.<\/p>\n

1. On the map card, click the arrow next to the Density <\/strong>layer to open the Layer options\u00a0<\/strong>pane.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633532,"id":1633532,"title":"layer_options_pane","filename":"layer_options_pane-1.png","filesize":5499,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/layer_options_pane-2","alt":"The Layer options pane","author":"6771","description":"","caption":"","name":"layer_options_pane-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 19:23:56","modified":"2022-06-23 19:24:05","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":262,"height":367,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","medium-width":186,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","medium_large-width":262,"medium_large-height":367,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","large-width":262,"large-height":367,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","1536x1536-width":262,"1536x1536-height":367,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","2048x2048-width":262,"2048x2048-height":367,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","card_image-width":262,"card_image-height":367,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/layer_options_pane-1.png","wide_image-width":262,"wide_image-height":367}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The Layer options<\/strong> pane appears with the Legend<\/strong> tab active. The legend values show that the majority of cells in the density surface are in the class with the lowest values.<\/p>\n

Note: <\/strong><\/p>\n

Your results may differ based on changing COVID-19 case numbers.<\/p>\n

2. Click the Symbology<\/strong>\u00a0tab, then click Classification<\/strong> to expand the classification options.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1632942,"id":1632942,"title":"options_tab","filename":"options_tab-1.png","filesize":4823,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/options_tab-2","alt":"The Symbology tab","author":"6771","description":"","caption":"","name":"options_tab-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 17:57:26","modified":"2022-06-23 17:57:43","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":261,"height":365,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","medium-width":187,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","medium_large-width":261,"medium_large-height":365,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","large-width":261,"large-height":365,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","1536x1536-width":261,"1536x1536-height":365,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","2048x2048-width":261,"2048x2048-height":365,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","card_image-width":261,"card_image-height":365,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/options_tab-1.png","wide_image-width":261,"wide_image-height":365}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

3. Click Equal interval<\/strong> to expand the Classification type<\/strong> menu.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1097271,"id":1097271,"title":"classification_type","filename":"classification_type.png","filesize":6095,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/classification_type","alt":"The classification type on the map","author":"6771","description":"","caption":"","name":"classification_type","status":"inherit","uploaded_to":1096291,"date":"2020-12-23 13:31:00","modified":"2020-12-23 13:31:16","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":262,"height":232,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","medium-width":262,"medium-height":232,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","medium_large-width":262,"medium_large-height":232,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","large-width":262,"large-height":232,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","1536x1536-width":262,"1536x1536-height":232,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","2048x2048-width":262,"2048x2048-height":232,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","card_image-width":262,"card_image-height":232,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_type.png","wide_image-width":262,"wide_image-height":232}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The following classification types are available:<\/p>\n

    \n
  • Natural breaks \u2013 Data is grouped based on naturally occurring patterns in the data.<\/li>\n
  • Equal interval \u2013 Data is grouped into equal-size ranges.<\/li>\n
  • Quantile \u2013 Data is divided into groups with the same number of features.<\/li>\n
  • Standard deviation \u2013 Data is grouped based on difference from the mean.<\/li>\n
  • Unclassed \u2013 Data is displayed using a continuous scale, rather than classes.<\/li>\n
  • Manual \u2013 Data is classified by the class breaks you define.<\/li>\n<\/ul>\n

    You will use natural breaks to classify your relative risk surface so that the classes group similar data together.<\/p>\n

    4. On the menu, choose Natural breaks<\/strong>.<\/p>\n

    The map updates to show natural breaks classification with 10 classes. You will also reduce the number of classes to make it easier to distinguish between classes.<\/p>\n

    5. For Number of classes<\/strong>, type 7<\/u> and press Enter<\/strong> to apply the changes.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633602,"id":1633602,"title":"classification_final","filename":"classification_final-1.png","filesize":5848,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/classification_final-2","alt":"The classification for the relative risk surface","author":"6771","description":"","caption":"","name":"classification_final-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 19:26:54","modified":"2022-06-23 19:27:12","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":262,"height":544,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","medium-width":126,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","medium_large-width":262,"medium_large-height":544,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","large-width":262,"large-height":544,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","1536x1536-width":262,"1536x1536-height":544,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","2048x2048-width":262,"2048x2048-height":544,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1-224x465.png","card_image-width":224,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/classification_final-1.png","wide_image-width":262,"wide_image-height":544}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

    The classification is updated to natural breaks with seven classes. You will add a legend to the page so the class breaks are visible to viewers.<\/p>\n

    6. Click the Legend<\/strong> tab, then click Pop out legend<\/strong>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1633622,"id":1633622,"title":"pop_out_legend","filename":"pop_out_legend-1.png","filesize":5104,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\/pop_out_legend-2","alt":"Pop out the map legend","author":"6771","description":"","caption":"","name":"pop_out_legend-2","status":"inherit","uploaded_to":1096291,"date":"2022-06-23 19:29:52","modified":"2022-06-23 19:29:59","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":261,"height":313,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","medium-width":218,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","medium_large-width":261,"medium_large-height":313,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","large-width":261,"large-height":313,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","1536x1536-width":261,"1536x1536-height":313,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","2048x2048-width":261,"2048x2048-height":313,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","card_image-width":261,"card_image-height":313,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/pop_out_legend-1.png","wide_image-width":261,"wide_image-height":313}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

    The legend appears on top of the map. You can move the legend beside your map and resize it using the side handles.<\/p>\n

    7. Click\u00a0Untitled Workbook<\/strong> to make the workbook title editable. Type a descriptive title, such as\u00a0New York City COVID-19 Relative Risk<\/strong> and save your workbook.<\/p>\n

    Your COVID-19 relative risk surface for New York City is complete. Based on the data from June 23, 2022, there is a fairly uniform relative risk across the city, with three major outliers where the density is higher than expected.<\/p>\n"}],"authors":[{"ID":6771,"user_firstname":"Vicki","user_lastname":"Cove","nickname":"Vicki Cove","user_nicename":"vickilynncove","display_name":"Vicki Lynn Cove","user_email":"VCove@esri.com","user_url":"","user_registered":"2018-03-02 00:18:48","user_description":"Vicki Lynn Cove is a documentation writer for Map Viewer analysis and ArcGIS Insights at Esri's Research and Development Centre in Ottawa, Canada. She has a background in biology, English literature, and GIS. In her spare time, Vicki Lynn enjoys fibre arts, playing her guitar, and the outdoors.","user_avatar":""}],"related_articles":[{"ID":826531,"post_author":"6771","post_date":"2020-04-22 10:37:51","post_date_gmt":"2020-04-22 17:37:51","post_content":"","post_title":"Use the COVID-19 Hospital Impact Model for Epidemics (CHIME) application in ArcGIS Insights","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"use-chime-arcgis-insights","to_ping":"","pinged":"","post_modified":"2022-11-25 09:47:02","post_modified_gmt":"2022-11-25 17:47:02","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=826531","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":1028791,"post_author":"6771","post_date":"2020-10-02 04:29:03","post_date_gmt":"2020-10-02 11:29:03","post_content":"","post_title":"Visualize global COVID-19 trends in ArcGIS Insights","post_excerpt":"","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"visualize-global-covid-19-trends-in-arcgis-insights","to_ping":"","pinged":"","post_modified":"2020-10-02 04:29:03","post_modified_gmt":"2020-10-02 11:29:03","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=1028791","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":858631,"post_author":"4951","post_date":"2020-05-12 03:00:27","post_date_gmt":"2020-05-12 10:00:27","post_content":"","post_title":"Epidemiology and ArcGIS Insights - Part 1","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"epidemiology-and-arcgis-insights-part-1","to_ping":"","pinged":"","post_modified":"2021-12-01 13:49:17","post_modified_gmt":"2021-12-01 21:49:17","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=858631","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"},{"ID":859231,"post_author":"4951","post_date":"2020-05-14 11:34:51","post_date_gmt":"2020-05-14 18:34:51","post_content":"","post_title":"Epidemiology and ArcGIS Insights - Part 2","post_excerpt":"","post_status":"publish","comment_status":"closed","ping_status":"closed","post_password":"","post_name":"epidemiology-and-arcgis-insights-part-2","to_ping":"","pinged":"","post_modified":"2020-05-15 14:28:14","post_modified_gmt":"2020-05-15 21:28:14","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=859231","menu_order":0,"post_type":"blog","post_mime_type":"","comment_count":"0","filter":"raw"}],"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/Card-2.png","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/Banner.png"},"yoast_head":"\nCreate a COVID-19 relative risk surface<\/title>\n<meta name=\"description\" content=\"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Create a COVID-19 relative risk surface\" \/>\n<meta property=\"og:description\" content=\"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\" \/>\n<meta property=\"og:site_name\" content=\"ArcGIS Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/esrigis\/\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-25T18:53:58+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@ESRI\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\"},\"author\":{\"name\":\"Vicki Lynn Cove\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/0cd06e08354db0b57055c98b400023ce\"},\"headline\":\"Create a COVID-19 relative risk surface\",\"datePublished\":\"2020-12-23T17:22:30+00:00\",\"dateModified\":\"2022-11-25T18:53:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\"},\"wordCount\":6,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\"},\"keywords\":[\"COVID-19\",\"epidemiology\",\"Learn ArcGIS\",\"learn by doing\",\"risk analysis\"],\"articleSection\":[\"Analytics\",\"Health and Human Services\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\",\"name\":\"Create a COVID-19 relative risk surface\",\"isPartOf\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#website\"},\"datePublished\":\"2020-12-23T17:22:30+00:00\",\"dateModified\":\"2022-11-25T18:53:58+00:00\",\"description\":\"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.esri.com\/arcgis-blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Create a COVID-19 relative risk surface\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#website\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/\",\"name\":\"ArcGIS Blog\",\"description\":\"Get insider info from Esri product teams\",\"publisher\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.esri.com\/arcgis-blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#organization\",\"name\":\"Esri\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png\",\"contentUrl\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png\",\"width\":400,\"height\":400,\"caption\":\"Esri\"},\"image\":{\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/esrigis\/\",\"https:\/\/x.com\/ESRI\",\"https:\/\/www.linkedin.com\/company\/5311\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/0cd06e08354db0b57055c98b400023ce\",\"name\":\"Vicki Lynn Cove\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/VickiC-213x200.jpg\",\"contentUrl\":\"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/VickiC-213x200.jpg\",\"caption\":\"Vicki Lynn Cove\"},\"description\":\"Vicki Lynn Cove is a documentation writer for Map Viewer analysis and ArcGIS Insights at Esri's Research and Development Centre in Ottawa, Canada. She has a background in biology, English literature, and GIS. In her spare time, Vicki Lynn enjoys fibre arts, playing her guitar, and the outdoors.\",\"url\":\"https:\/\/www.esri.com\/arcgis-blog\/author\/vickilynncove\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Create a COVID-19 relative risk surface","description":"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface","og_locale":"en_US","og_type":"article","og_title":"Create a COVID-19 relative risk surface","og_description":"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.","og_url":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface","og_site_name":"ArcGIS Blog","article_publisher":"https:\/\/www.facebook.com\/esrigis\/","article_modified_time":"2022-11-25T18:53:58+00:00","twitter_card":"summary_large_image","twitter_site":"@ESRI","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#article","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface"},"author":{"name":"Vicki Lynn Cove","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/0cd06e08354db0b57055c98b400023ce"},"headline":"Create a COVID-19 relative risk surface","datePublished":"2020-12-23T17:22:30+00:00","dateModified":"2022-11-25T18:53:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface"},"wordCount":6,"commentCount":0,"publisher":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization"},"keywords":["COVID-19","epidemiology","Learn ArcGIS","learn by doing","risk analysis"],"articleSection":["Analytics","Health and Human Services"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface","url":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface","name":"Create a COVID-19 relative risk surface","isPartOf":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#website"},"datePublished":"2020-12-23T17:22:30+00:00","dateModified":"2022-11-25T18:53:58+00:00","description":"Create a COVID-19 relative risk surface for New York City using ArcGIS Insights.","breadcrumb":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.esri.com\/arcgis-blog\/products\/insights\/analytics\/create-relative-risk-surface#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.esri.com\/arcgis-blog\/"},{"@type":"ListItem","position":2,"name":"Create a COVID-19 relative risk surface"}]},{"@type":"WebSite","@id":"https:\/\/www.esri.com\/arcgis-blog\/#website","url":"https:\/\/www.esri.com\/arcgis-blog\/","name":"ArcGIS Blog","description":"Get insider info from Esri product teams","publisher":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.esri.com\/arcgis-blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.esri.com\/arcgis-blog\/#organization","name":"Esri","url":"https:\/\/www.esri.com\/arcgis-blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png","contentUrl":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Esri.png","width":400,"height":400,"caption":"Esri"},"image":{"@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/esrigis\/","https:\/\/x.com\/ESRI","https:\/\/www.linkedin.com\/company\/5311\/"]},{"@type":"Person","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/0cd06e08354db0b57055c98b400023ce","name":"Vicki Lynn Cove","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.esri.com\/arcgis-blog\/#\/schema\/person\/image\/","url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/VickiC-213x200.jpg","contentUrl":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/04\/VickiC-213x200.jpg","caption":"Vicki Lynn Cove"},"description":"Vicki Lynn Cove is a documentation writer for Map Viewer analysis and ArcGIS Insights at Esri's Research and Development Centre in Ottawa, Canada. She has a background in biology, English literature, and GIS. In her spare time, Vicki Lynn enjoys fibre arts, playing her guitar, and the outdoors.","url":"https:\/\/www.esri.com\/arcgis-blog\/author\/vickilynncove"}]}},"text_date":"December 23, 2020","author_name":"Vicki Lynn Cove","author_page":"https:\/\/www.esri.com\/arcgis-blog\/author\/vickilynncove","custom_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2020\/12\/Banner.png","primary_product":"ArcGIS Insights","tag_data":[{"term_id":585551,"name":"COVID-19","slug":"covid-19","term_group":0,"term_taxonomy_id":585551,"taxonomy":"post_tag","description":"","parent":0,"count":72,"filter":"raw"},{"term_id":656271,"name":"epidemiology","slug":"epidemiology","term_group":0,"term_taxonomy_id":656271,"taxonomy":"post_tag","description":"","parent":0,"count":6,"filter":"raw"},{"term_id":25071,"name":"Learn ArcGIS","slug":"learn-arcgis","term_group":0,"term_taxonomy_id":25071,"taxonomy":"post_tag","description":"","parent":0,"count":49,"filter":"raw"},{"term_id":100192,"name":"learn by doing","slug":"learn-by-doing","term_group":0,"term_taxonomy_id":100192,"taxonomy":"post_tag","description":"","parent":0,"count":28,"filter":"raw"},{"term_id":263952,"name":"risk analysis","slug":"risk-analysis","term_group":0,"term_taxonomy_id":263952,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"category_data":[{"term_id":23341,"name":"Analytics","slug":"analytics","term_group":0,"term_taxonomy_id":23341,"taxonomy":"category","description":"","parent":0,"count":1325,"filter":"raw"},{"term_id":28211,"name":"Health and Human Services","slug":"health","term_group":0,"term_taxonomy_id":28211,"taxonomy":"category","description":"","parent":0,"count":133,"filter":"raw"}],"product_data":[{"term_id":36801,"name":"ArcGIS Insights","slug":"insights","term_group":0,"term_taxonomy_id":36801,"taxonomy":"product","description":"","parent":36591,"count":119,"filter":"raw"}],"primary_product_link":"https:\/\/www.esri.com\/arcgis-blog\/?s=#&products=insights","_links":{"self":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/1096291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/types\/blog"}],"author":[{"embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/users\/6771"}],"replies":[{"embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/comments?post=1096291"}],"version-history":[{"count":0,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/blog\/1096291\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/media?parent=1096291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/categories?post=1096291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/tags?post=1096291"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/industry?post=1096291"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.esri.com\/arcgis-blog\/wp-json\/wp\/v2\/product?post=1096291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}