Displaying 1 result from an estimated 1 matches for "factorcombinations".
2009 May 14
1
Supplying NA or Zeros in dataframe for missing factor combinations
Hi there,
I am not getting anywhere near a solution, so here is my question. I
have searched the archives and didn't find a solution, but maybe my
search didn't use the right words. So here it is:
I have a dataframe with the following structure
factor1 factor2 value
In the (rather large) dataset I have to work on, there are some factor
combinations missing, e.g.
factor1 <-