Tobias Muhlhofer <[EMAIL PROTECTED]> writes: > Hi! > > Sorry for asking a trivial questions, but I can't seem to figure this out. > > I have a dataframe called master containing 30-odd variables. > > In this dataframe, I have observations across these 30 variables from > 1930 to 2003 (I've made a "year" variable). How can I drop all rows > for which the year is less than 1960? I'm assuming something with > ifelse() but I can't quite figure it out. > > I would appreciate a suggestion of some syntax.
myframe[myframe$year>=1960,] or subset(myframe, year >= 1960) -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [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
