[R] remove

Bert Gunter bgunter.4567 at gmail.com
Sun Jun 11 07:34:36 CEST 2017


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
<jdnewmil at 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 <valkremk at 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 at 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 at 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.



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