Hello all, I have a data frame filled with senders and recipients. Some of the senders have multiple rows with different recipients and I want to merge those rows. For example I have
[email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] I want this to become [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] How would I go about doing this? [[alternative HTML version deleted]] ______________________________________________ [email protected] 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.
