Hi,
I have the following data frame, where col2 is a startdate and col3 an enddate COL1 COL2 COL3 A 40462 40482 B 40462 40478 The above timeframe of 3 weeks I would like to splits it in weeks like this COL1 COL2 COL3 COL4 A 40462 40468 1 A 40469 40475 1 A 40476 40482 1 B 40462 40468 1 B 40469 40475 1 B 40476 40478 0.428 Where COL4 is an identifier if the timeframe between COL2 and COL3 is exactly 7 days or shorter. In the example above for B the last split contains only 3 days so the value in COL 4 is 3/7 I can't figure out to do the above. Is there someone who can help me out? Thx in advance, Bert [[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.