[R] Working with string

[Bert Gunter]

Well, maybe: it assumes that the uppercase string version always
occurs after the nonuppercase version. That's why I rejected it.

However, it points out something important: details matter. The more
one knows about the nature of the problem, the better the solution one
can tailor -- a remark for which the response should be, "well duhhh!"
 But posters frequently seem to disregard this.

-- Bert

On Sun, Aug 11, 2013 at 8:43 AM, arun <smartpink111 at yahoo.com> wrote:
>
>
> Hi,
>
> May be this helps:
> chnew<-CH
>  chnew[duplicated(toupper(CH))]<-CH[duplicated(toupper(CH),fromLast=TRUE)]
>  chnew
> #[1] "aBd"    "sTb"    "aBd"    "dFDasd" "asd"    "dFDasd"
> A.K.
>
>
> ----- Original Message -----
> From: Christofer Bogaso <bogaso.christofer at gmail.com>
> To: r-help <r-help at r-project.org>
> Cc:
> Sent: Sunday, August 11, 2013 8:39 AM
> Subject: [R] Working with string
>
> Hello again,
>
> Let say I have a lengthy character vector like:
>
> CH <- c("aBd", "sTb", "ABD", "dFDasd", "asd", "DFDASD")
>
> Now I want to create a vector like:
>
> CH_New <- c("aBd", "sTb", "aBd", "dFDasd", "asd", "dFDasd")  ## the 3rd and
> 6th element replaced
>
> Basically, the goal is:
>
> If an element has all upper case then it will find another element with all
> lower case or mix of upper/lower case. Then the all-upper-case element will
> be replaced by that mix. If there is multiple match then chose the first
> one.
>
>
> Can somebody give me any pointer how can I achieve that?
>
> Thanks and regards,
>
>     [[alternative HTML version deleted]]
>
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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.
>
>
> ______________________________________________
> 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.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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