I read an article in the Washington Post. It talked about how most mostly black neighborhoods voted more Republican in 2016 than 2012. I wanted to do use this method by age instead of race.
I was thinking about looking at age not through exit polls but in a more direct way just like the article did. Because of how families work, we can't crank numbers all the way up to 90 percent like we can do with race. We are looking at the percentage of under 18 population. The idea is to find precincts that fall entirely in a census tract.
We need some parameters. We will look at precincts in census tracts that are 15 to 36 percent under 18 according to 2010 census data. (If it is more or less, it is out of bounds.) Each precinct will be categorized into seven categories at 3 percentage point intervals.
I want a graph from left 15 to right 36 which shows vote share for Trump (red) and Clinton (blue) following those criteria.