Scroll up or down to find the city with a population that is closest to and greater than 50,000. What city had just over 50,000 people in 2000? Select the city by clicking on the left-hand column (all the way to the left – the “grey column” without any column name). When selected, all information for that city will be highlighted in blue in the attribute table. Scroll to the top (or bottom depending on how you sorted your data) of the attribute table. While pressing and holding down the Shift key on your keyboard, click on the largest city – this will select all of the cities with a population greater than 50,000. How many cities are selected? Without changing the selected features, close the attribute table. What color are the selected features on the map? Now you are going to create a new shapefile that contains only the Cities with a population of larger than 50,000 people. Right-click on the Cities layer in the TOC, and go to Data > Export Data. In the Export Data window, export “Selected features” and use the same coordinate system as “this layer’s source data”. Click on the button with the yellow folder icon to open the Saving Data window. Browse to the folder for your flash drive, save as type “Shapefile”, and name the new shapefile “LargeCities”. Click the “Save” button to close the Saving Data window, then click the OK button to close the Export Data window. When prompted, click “Yes” to add the exported data to the map as a layer. Remember: When saving files in ArcGIS, only use alphanumeric and no special characters (e.g. large_cities1 NOT Large Cities $) Click on the Clear Selected Features tool on the Tools toolbar.
Scroll up or down to find the city with a population that is closest to and greater than 50,000. What city had just over 50,000 people in 2000? Select the city by clicking on the left-hand column (all the way to the left – the “grey column” without any column name). When selected, all information for that city will be highlighted in blue in the attribute table. Scroll to the top (or bottom depending on how you sorted your data) of the attribute table. While pressing and holding down the Shift key on your keyboard, click on the largest city – this will select all of the cities with a population greater than 50,000. How many cities are selected? Without changing the selected features, close the attribute table. What color are the selected features on the map? Now you are going to create a new shapefile that contains only the Cities with a population of larger than 50,000 people. Right-click on the Cities layer in the TOC, and go to Data > Export Data. In the Export Data window, export “Selected features” and use the same coordinate system as “this layer’s source data”. Click on the button with the yellow folder icon to open the Saving Data window. Browse to the folder for your flash drive, save as type “Shapefile”, and name the new shapefile “LargeCities”. Click the “Save” button to close the Saving Data window, then click the OK button to close the Export Data window. When prompted, click “Yes” to add the exported data to the map as a layer. Remember: When saving files in ArcGIS, only use alphanumeric and no special characters (e.g. large_cities1 NOT Large Cities $) Click on the Clear Selected Features tool on the Tools toolbar.