Hi Bill,
Thanks very much for your response.
Can you suggest an approach for the "pre"-padding? Here is a more
respresentative sample of the values:
mytimes<-scan(what="")
1334
2310
39
2300
1556
3
404
37
1320
4
211
2320
Thanks!
Dan
On Thu, Jan 26, 2012 at 10:41 AM, William Dunlap <wdun...@tibco.com> wrote:
> > sub("([[:digit:]]{2,2})$", ":\\1", mytimes)
> [1] "14:57" "14:57" "13:10" "11:58" "1:37" "18:55"
>
> That will convert "05" to ":05" and will do nothing
> to "5". Pad with 0's before calling sub if that is
> required.
>
> Bill Dunlap
> Spotfire, TIBCO Software
> wdunlap tibco.com
>
>> -----Original Message-----
>> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
>> Behalf Of Dan Abner
>> Sent: Thursday, January 26, 2012 6:50 AM
>> To: r-help@r-project.org
>> Subject: [R] Inserting a character into a character string XXXX
>>
>> Hello everyone,
>>
>> I have a character vector of 24 hour time values in the format hm
>> without the delimiting ":". How can I insert the ":" immediately to
>> the left of the second digit from the right?
>>
>> mytimes<-scan(what="")
>> 1457
>> 1457
>> 1310
>> 1158
>> 137
>> 1855
>>
>>
>> Thanks!
>>
>> Dan
>>
>> ______________________________________________
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>> 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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