Convert yyyymmdd string to Date class in R

Question

I would like to convert these dates with format YYYYMMDD to a Date class.

dates <- data.frame(Date = c(\"20130707\", \"20130706\", \"20130705\", \"2013070         


        

Answer 1

An extra conversion to characters works for me:

dates<-as.Date(as.character(dates),format="%Y%m%d")

Without the conversion the following error occurs:

dates<-as.Date(dates,format="%Y%m%d")
Error in as.Date.numeric(dates, format = "%Y%m%d") : 
  'origin' must be supplied

Different error but this might help, works for POSIXct too, paste date and hours, format %Y%m%d%H