|Groups of Voter per 42nd LD Precinct sorted into groups of threes: 3 Votes for last GEs (2013,2014,2015), Active but no votes for the last 3 GEs, NA for the last three GEs. Click to enlarge. Based on 4/15/2016 WC voterdb.|
This code experiments with using data.table to group and select data. Political piece is here.