search for: tp3179400p3179400

Displaying 1 result from an estimated 1 matches for "tp3179400p3179400".

2011 Jan 07
2
Summing over specific columns in a matrix
...colSums and sum overall- I just wondered if this type of grouping can be included somehow in a vector such as c(2,2,1)? I don't really want to have to use a loop for this. Many thanks Emma -- View this message in context: http://r.789695.n4.nabble.com/Summing-over-specific-columns-in-a-matrix-tp3179400p3179400.html Sent from the R help mailing list archive at Nabble.com.