How to summarize by variable column names
I have a table with variable numeric, continuous column names. I need to get the mean of each column, grouped by a different column. The script below shows what I'm trying to do and it makes a generic table that works for this purpose. I'm getting hung up on the "Mean(ColNames)" line because it can't seem to process that. If I replace "Mean(ColNames)" with "Mean(:Col2, :Col3)" or "Mean(:Name(...