[R] text matching

Takatsugu Kobayashi taquito2007 at gmail.com
Tue Sep 20 06:03:17 CEST 2011


Hi,

The "str_locate" function instringr package may do what you are looking for.
Hope this link will help...

http://en.wikibooks.org/wiki/R_Programming/Text_Processing

Taka


On Mon, Sep 19, 2011 at 7:15 PM, SNV Krishna <krishna at primps.com.sg> wrote:
> Hi All,
>
> I have a character vector by name tickers
>
>> head(tickers,10)
>
>            V1
> 1  ADARSHPL.BO
> 2        AGR.V
> 3          AGU
> 4       AGU.TO
> 5     AIMCO.BO
> 6  ALUFLUOR.BO
> 7        AMZ.V
> 8          AVD
> 9  ANILPROD.BO
> 10    ARIES.BO
>
> I would like to extract all elements that has ".BO" in it. I tried
>
>> grep("\.BO",tickers)
> Error: '\.' is an unrecognized escape in character string starting "\."
>
>> grep(".BO",tickers)
> [1] 1
>
> Could any one please guide me on this. Many thanks for the help
>
> Best Regards,
>
> Krishna
>
>        [[alternative HTML version deleted]]
>
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