Excellent tutorial. I downloaded census tracts from the site in the video, and then imported total population data onto Excel and changed the type to Whole Number. However, when I converted it to a table on Arc, the total population field was a string field instead of a number field. I can't map use that field for Quantities of map because it's not numerical (I am trying to map population density for Arkansas tracts). How do you remedy this?
hello! This is a very good intro, well done! I currently have a problem that perhaps you could gelp with. I have two files: census tracts as polygons and theft reports in the form of point data. There are 4 types of thefts listed in the attributes of the point data and I am needing to essentially count how many different types of thefts occurred within each census tract. Some contain none while others contain all four and some only have 2 or 3. This is obvious. What is not obvious to me is the process used to create a new field that represents thia number and how to calculate it without manually going through each tract. Do you know how to do this?
To create New Fields, you may go to the attribute table by right clicking on the layer, then open attribute table and choose Table Options. Thereafter, select Add Field, a dialog box will pop up, which requires you to name the field and the data type. To calculate Field(s), right click on the newly created Field and select Field Calculator.
