Use mutate to change the date before you use group_by. Posting incomplete fragments in your questions is usually not enough to get useful help with R on the internet. Please add the extra few lines of code that would make it reproducible [1] from now on.
[1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. On August 22, 2015 12:43:05 AM PDT, Shivi82 <shivibha...@ymail.com> wrote: >Hi All, > >I am using dplyr package and need to find total bills booked grouped on >a >date level however my date is integer. >In the code below i was trying to change date format from integer. >However >it is throwing an error: > >"no applicable method for 'group_by_' applied to an object of class >"c('integer', 'numeric')" > >ak%>% > group_by(as.Date(pickdate),"%y%m%d")%>% > summarise(Total=count(waybill)) > >Do i need to create a new var first changing the date and then group it >or >as.Date will work as i added in dplyr. > > > > > >-- >View this message in context: >http://r.789695.n4.nabble.com/Date-as-Integer-tp4711377.html >Sent from the R help mailing list archive at Nabble.com. > >______________________________________________ >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.
