Also ?ifelse rather than if() I think. Cheers, Bert
Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sat, Jun 10, 2017 at 10:17 PM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > You are using a slash in your format string to separate sub-fields but your > data uses a dash. > -- > Sent from my phone. Please excuse my brevity. > > On June 10, 2017 8:18:37 PM PDT, Val <valkr...@gmail.com> wrote: >>Hi all, >>I have a date issue and would appreciate any help. >> >>I am reading a field data and n one of the columns I am expecting a >>date but has non date values such as character and empty. space. >>Here is a sample of my data. >> >>KL <- read.table(header=TRUE, text='ID date >>711 Dead >>712 Uknown >>713 20-11-08 >>714 11-28-07 >>301 >>302 09-02-02 >>303 09-21-02',stringsAsFactors = FALSE, fill =T) >> >>str(KL) >>data.frame': 7 obs. of 2 variables: >> $ ID : int 711 712 713 714 301 302 303 >> $ date: chr "Dead" "Uknown" "20-11-08" "11-28-07" . >> >>I wanted to convert the date column as follows. >>if (max(unique(nchar(as.character(KL$date))))==10) { >> KL$date <- as.Date(KL$date,"%m/%d/%Y") >>} >>but not working. >> >> >>How could I to remove the corresponding entire row. that do not have >>a date format and do the operation? >>thank you in advance >> >>______________________________________________ >>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. ______________________________________________ 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.