Hi, I'm requesting you don't berate me for asking this question: I clearly don't have the gist of factors.
I have two dataframes, A and B. Each of them has a column containing strings (they're labels). I want to, one-by-one in a loop, compare the particular string in an entry from dataframe A to an entry in B, to see if they're the same. The problem, when posing the question: searchID1 <- A[['label']][i] possMatch1 <- B[['label']][j] searchID1 == possMatch1 I get the error: Error in Ops.factor(searchID1, possMatch1) : level sets of factors are different I presume this is because the set of possible values in the 'labels' columns, respectively in A and B, differ. In my case, I'm not interested in this at all; I just want to compare individual entries from the two dataframes in a pair-wise fashion. Can I strip the "factors" associated with the entries? Is there a better way? Jonathan [[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.