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2009 Jun 10
1
how to get output from a nested loop
Dear all, I imagine that this is a trival question, but it has perplexed for most of the day. Any help would be greatly appreciated. Below is an example of what I'm trying to do. Essentially I want to produce all unique 1 x 1 combinations of certain columns from a dataframe, and join these to other columns from the same dataframe. I'm having problems with the nested loop as I can only