Grouping by variables in a dataset across multiple columns (stackoverflow.com)stack
19 points by Cameron in stackoverflow.com · 15h ago · stack
I am trying to group my dataset by variables that can appear in multiple columns in R. If a given variable appears any time in any of these four columns, I want it to fall into a group, so I can compare groups by that variable. For example: value <- c(2.4, 3.6, 7.8, 9.1) color_1…