search for: tp26376359p26376359

Displaying 1 result from an estimated 1 matches for "tp26376359p26376359".

2009 Nov 16
3
Sum over indexed value
...of all values in column two associated with the value 1 in column one). I would like two columns in return - the indexed value in column one (i.e. this time no duplicates) and the sum in column two. How do I do this? -- View this message in context: http://old.nabble.com/Sum-over-indexed-value-tp26376359p26376359.html Sent from the R help mailing list archive at Nabble.com.