I have an excel spreadsheet showing different wind speeds for a location based off of zip codes. I want to try to create polygons to represent each windspeed for each location. How can this be done in ArcMap? The table only includes Zip Codes and Windspeed
Solved! Go to Solution.
I figured it out! The first char in one of my columns was a blank space.
grief...the unseen is often the worst offender
That solves the joining of the fields problem. But I am still left with trying to create a polygon from the fields I just joined. Is there a way to do this? I don't know if this can be done
Are you having to go back to making a map? I presume that the layer you joined the file to has the necessary geometry?! If so, then What is a layer?—Help | ArcGIS for Desktop would be a good starting point.
The wind table I joined is just a flat table I found on the Internet, it has no field for geometry. I guess I was under the impression that once I joined the fields, it would just use the geometry from the zip code polygon feature to calculate a wind zone feature.
You shouldn't have to create a polygon layer.
There are zipcode boundary files already created by the CENSUS bureau. If you do not already have a layer, what did you join the 'windspeed' attribute table to?
What you need to do is symbolize each zip code by wind speed.
Layer Properties--> Symbology --> Categories --> choose the 'WindSpeed' field
Thank you Mitch, what you are saying may work. I was try to join the zip code feature to the wind speed table.