[R] separate a variable in several variables

Gabor Grothendieck ggrothendieck at gmail.com
Wed Nov 12 23:26:27 CET 2008


You can fix the space problem by using '[^[:digit:]]' instead
of '[[:alpha:]]' and '[^[:alpha:]]' instead of '[[:digit:]]'

On Wed, Nov 12, 2008 at 5:10 PM, Peter Alspach
<PAlspach at hortresearch.co.nz> wrote:
> Tena koe
>
> Try:
>
> gsub('[[:alpha:]]', '', unlist(DATA)) and
> gsub('[[:digit:]]', '', unlist(DATA))
>
> unlist(DATA) since it looks like DATA maybe a dataframe.
>
> You are still left with the spaces, but these can be readily removed.
> Someone else may offer a better solution.
>
> HTH ...
>
> Peter Alspach
>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org
>> [mailto:r-help-bounces at r-project.org] On Behalf Of CE.KA
>> Sent: Thursday, 13 November 2008 10:10 a.m.
>> To: r-help at r-project.org
>> Subject: [R] separate a variable in several variables
>>
>>
>> Hello R users,
>> Imagine the data frame DATA with the variable x which is
>> composed by numeric and alpha caracters.
>>
>> > DATA
>>      x
>> 1   12F
>> 2   13 AD
>> 3   356PO
>> 4   1D
>> 5   GRT
>> 6   PO52
>> 7   LN4Z
>>
>> Is there a way to separarate x in 2 variables:
>> y: only numeric caracters
>> z: only alpha caracters
>> For exemple:
>>      x           y          z
>> 1   12F        12         F
>> 2   13 AD     13         AD
>> 3   356PO     356      PO
>> 4   1D          1         D
>> 5   GRT        0         GRT
>> 6   PO52      52      PO
>> 7   LN4Z      4         LNZ
>>
>> Kind regards
>> --
>> View this message in context:
>> http://www.nabble.com/separate-a-variable-in-several-variables
>> -tp20469491p20469491.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> 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.
>>
>
> The contents of this e-mail are privileged and/or confidential to the named
>  recipient and are not to be used by any other person and/or organisation.
>  If you have received this e-mail in error, please notify the sender and delete
>  all material pertaining to this e-mail.
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.
>



More information about the R-help mailing list