[R] looking for a string

[Charles C. Berry]

On Tue, 15 Apr 2008, [Ricardo Rodriguez] Your XEN ICT Team wrote:

> Hi all,
>
> I have not been able to find an answer to what is a simple question:
>
> conaguaMexicoSub <- subset(conagua, unidad == "Jalapa", select =
> c(equipo,X101:X309))
>
> This subset gives me all the rows from conagua where unidad is Jalapa.
> But, please, how do I get all the rows where unidad contents Jalapa?
>
> I've been looking at regex, but I didn't find how pass one to unidad ==.

You want

 	?regexpr

Something like

 	regexpr("Jalapa", as.character( unidad ) ) != -1

HTH,

Chuck
>
> Thanks!
>
> -- 
> Ricardo Rodríguez
> Your XEN ICT Team
>
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Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901