OK, so here's a category that I want to insert: The percent difference in population change for counties in Oklahoma
I did this by merging a census-downloaded spreadsheet of county change to excel and merging it with a shape tiger file of oklahoma counties:
So, I'm trying to do symbology, so I can shade the counties in Oklahoma based on % population differential, but here's where I run into problems. The field perdiff20102014 appears in the value field here....
But when I get to color ramp to do different classes....this happens:
ALAND and AWATER are the only two options for the color ramp. Those are two variables from the original dataset and not the one I joined it with.
Any ideas?