This should get you started: x <- "2009-03-21" substr( x, 1, 4 ) y <- as.integer( substr( x, 1, 4 ) ) y
or yy <- as.POSIXlt( x )$year + 1900 yy RShowDoc( "R-intro" ) On June 4, 2020 9:18:00 PM PDT, Charles Thuo <tcmui...@gmail.com> wrote: >Dear Sirs, > >I have a data frame that has a column that shows the transaction date. > >How do i add another column that extracts the year of transaction from >the >transaction date. > >Charles > > [[alternative HTML version deleted]] Please post in plain text. It will get converted for you if you forget, and the quality of the automatic conversion can be awful. > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >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. -- Sent from my phone. Please excuse my brevity. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
