I have a data frame with three columns client ID | date | value
For each cilent ID I want to determine Min date and Max date and for any dates in between that are missing I want to insert a row Client ID | date| NA Any help would be appreciated. ______________________________________________ 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.
