All, I have three columns of data: id, date, hab. I am trying to set up a matrix that has the id as the rows, date as columns, and the hab value as the data values. Each id/date combination can only have one hab value. I would like for it to look something like this" date 1, date 2, date 3. id 0001 2 1 2 0002 3 5 6
I don't know how to set this up properly. I am pretty sure dates cannot be used in a matrix, but I can easily convert this to an integer. I am mainly unsure of the functions to use to do this operation. Thank you [[alternative HTML version deleted]] ______________________________________________ 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.