>>>>> John Kane
>>>>> on Tue, 17 Dec 2019 20:28:17 -0500 writes:
> library(lubridate)
> gs$dat1 <- mdy(gs$date)
there's really no reason for going beyond base R.
Using the proper format as per Patrick and Peter's advice
(below) is perfectly clear and actually
more robust (for the next data set etc)
than going via "good guessing" in extra packages.
> On Tue, 17 Dec 2019 at 18:38, peter dalgaard <[email protected]> wrote:
>>
>> ...and switch the order, and use %y for 2-digit years.
>>
>> > On 17 Dec 2019, at 23:57 , Patrick (Malone Quantitative)
<[email protected]> wrote:
>> >
>> > Try putting / instead of - in your format, to match the data.
>> >
>> > On Tue, Dec 17, 2019 at 5:52 PM Val <[email protected]> wrote:
>> >>
>> >> Hi All,
>> >>
>> >> I wanted to to convert character date mm/dd/yy to YYYY-mm-dd
>> >> The sample data and my attempt is shown below
>> >>
>> >> gs <-read.table(text="ID date
>> >> A1 09/27/03
>> >> A2 05/27/16
>> >> A3 01/25/13
>> >> A4 09/27/19",header=TRUE,stringsAsFactors=F)
>> >>
>> >> Desired output
>> >> ID date d1
>> >> A1 09/27/03 2003-09-27
>> >> A2 05/27/16 2016-05-27
>> >> A3 01/25/13 2012-04-25
>> >> A4 09/27/19 2019-09-27
>> >>
>> >> I used this
>> >> gs$d1 = as.Date(as.character(gs$date), format = "%Y-%m-%d")
>> >>
>> >> but I got NA's.
>> >>
>> >> How do I get my desired result?
>> >> Thank you.
>> >>
>> >> ______________________________________________
>> >> [email protected] 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.
>> >
>> > ______________________________________________
>> > [email protected] 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.
>>
>> --
>> Peter Dalgaard, Professor,
>> Center for Statistics, Copenhagen Business School
>> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
>> Phone: (+45)38153501
>> Office: A 4.23
>> Email: [email protected] Priv: [email protected]
>>
>> ______________________________________________
>> [email protected] 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.
> --
> John Kane
> Kingston ON Canada
> ______________________________________________
> [email protected] 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.
______________________________________________
[email protected] 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.
