Hi weix1,

Try either  "v:\\work\\gene" or "v:/work/gene".  For more information see
"Basic Regular Expressions" under ?regex as well as the Windows FAQ.

HTH,
Jorge


On Fri, Apr 23, 2010 at 12:37 PM, weix1 <> wrote:

>
> I have string as follows:"v:\work\gene"
> however, i can not write this as character string in R
> what i did is:
> path<- as.character("v:\work\gene")
>
> but it seems that \ is eliminated:
> Warning messages:
> 1: '\w' is an unrecognized escape in a character string
> 2: '\g' is an unrecognized escape in a character string
> 3: unrecognized escapes removed from "v:\work\gene"
> > path
> [1] "v:workgene"
>
> how can i keep the \ in string.
>
> thanks
>
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