Dear useRs, I am currently doing some data cleaning and data manipulation and I have the following problem. I have two vectors. Let say the size of the first one is 10 000 (vector 1) and the size of the second one is 1 000 000 (vector 2).
I need to know for each cell of vector 1 which cells of vector 2 correspond. I tried to combine the "which" and "apply" but I dit not succeed and I have no idea about a possible vectorization. Can someone help me ? Thanks Guillaume ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.