Look at the zoo or data.table packages. -- Sent from my phone. Please excuse my brevity.
On July 20, 2016 1:31:26 PM PDT, lily li <chocol...@gmail.com> wrote: >Hi R users, > >I have a dataframe, where there is a column 'time' represents time >series >but is not complete. How to expand the dataframe so this column will >become >complete, where other columns with the newly added rows have NA values? >Thanks. > >df >A B C time >10 5 3.3 1990-01-01 >11 5 4 1990-02-07 >12 4 3 1990-02-14 >... > > [[alternative HTML version deleted]] > >______________________________________________ >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. ______________________________________________ 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.