[R] Regex to stop at first capital letter after sequence

[Bert Gunter]

You don't need a regex.

?strsplit

Something like:

> y <-c("PPA 06 - Promo Vasito", "PPA 05 - Cuentos")

> sapply(strsplit(y, "-"),"[",2)
[1] " Promo Vasito" " Cuentos"

You may have to add spaces around your "-" , as you failed to supply
data so I cannot be sure what you have.

-- Bert



Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Mon, Dec 19, 2016 at 1:25 PM, Omar André Gonzáles Díaz
<oma.gonzales at gmail.com> wrote:
> I have the following strings:
>
> [1] "PPA 06 - Promo Vasito"      [2] "PPA 05 - Cuentos"
> [3] "PPA 04 - Promo vasito"      [4] "PPA 03 - Promoción escolar"
> [5] "PPA - Saluda a tu pediatra" [6] "PPL - Dia del Pediatra"
>
> *Desired result*:
>
> [1] "Promo Vasito"                 "Cuentos"                "Promo vasito"
>
> [4] "Promoción escolar"      "Saluda a tu pediatra"   "Dia del Pediatra"
>
>
> *First attemp*:
>
> After this line:
>
> mead_nov$`Nombre del anuncio` <- gsub("(PPA.*)([A-Z].*)", "\\2",
> mead_nov$`Nombre del anuncio`)
>
> I get these:
>
> [1] "Vasito"                 [2] "Cuentos"                [3] "Promo
> vasito"
> [4] "Promoción escolar"      [5] "Saluda a tu pediatra"   [6] "PPL - Dia
> del Pediatra"
>
>
> *Second attemp:*
>
> mead_nov$`Nombre del anuncio` <- gsub("(PPA|PPL.*)([A-Z].*)", "\\2",
> mead_nov$`Nombre del anuncio`)
>
> I get this:
>
> [1] "PPA 06 - Promo Vasito"     [2] "PPA 05 - Cuentos"
> [3] "PPA 04 - Promo vasito"      [3] "PPA 03 - Promoción escolar"
> [5] "PPA - Saluda a tu pediatra" [6] "Pediatra"
>
>
> Thank you for your help.
>
>         [[alternative HTML version deleted]]
>
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