From: Bernd Jagla <baj2107 at columbia.edu> Date: 2007/11/30 Fri PM 09:24:34 CST To: r-help at r-project.org Subject: [R] compare strings
below assumes that there are only 2 columns in the dataframe or that the string columns are the first two columns ? which(df[,1] == df[,2])
Sorry for the question, but I really cannot find the right search terms to find an answer.. I have a data frame with strings in some of the columns. I want to know all the rows where the strings in both columns are equal. How do I do this? Thanks, Bernd [[alternative HTML version deleted]]
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