The Guardian plotted homicide locations on top of city maps here:
Given lat/lon data for homicides, I'd like to create a census-block-group scatterplot of population density versus homicide prevalence.
I'm familiar with R, python, and linux commandline tools, and wouldn't mind learning some QGIS.
Having never done anything like this, there is probably a better way (?), but my thinking is to convert homicide prevalence to a heatmap, then calculate the average heatmap value over the area of each census block group.
Are there GIS utilities/libraries that would simplify the task?