I am using QGIS 3.10 for Mac and facing some problems with the "Select by Expression" tool. The function I'm using is not selecting any features, even though it should. I have tested it with a few other functions, and the tool works just fine––this particular function seems to be hairy, and I'm not sure why.
I need to select features in the layer that have a certain population density. As such, I am using the following function in "Search by expression":
"TotPop_" / "sq_mi" >= 1000
I'm not sure what's wrong with the function, because it's not any selecting features at all, even though I manually went through and found a couple that apply! (The table is, unfortunately, too long for me to sift through them all manually.)
Does anyone have ideas about what I might be doing wrong?