search for: tp4648112p4648130

Displaying 1 result from an estimated 1 matches for "tp4648112p4648130".

Did you mean: tp4648112p4648131
2012 Nov 01
4
Loop over several variables
Hey everybody, I am looking for a way to loop commands over several variables in a dataframe. Basically I want to do something like this: ti1<-aggregate(dataframename$y1, by=data.frame(dataframename$aggregationvar), sum,na.rm=TRUE) This works fine as it is but i want to do it for several variables thereby generating several tix. I tried with a for-loop but the