[R] Stringr Package

[Ista Zahn]

On Wed, Apr 10, 2013 at 12:25 PM, Sudip Chatterjee
<sudipanalyst at gmail.com> wrote:
> Hi Group,
>
>  I have a question on Stringr package
>
>  I have a table like this
>  X     Y
>  ab    su - di
>  ac    pi - tu
>  ad    tu - tu
>
>  I want output like this
>   X        Y
> ab         su
> ab         di
> ac         pi
> ac         tu
> ad         tu
> ad         tu
>
>  I am wondering if this operation can be done using stringr package (only)

I doubt it. stringr manipulates strings, you also want to reshape the
data. You can do

dat <- read.table(text = ' X     Y
 ab    "su - di"
 ac    "pi - tu"
 ad    "tu - tu"', header=TRUE)

library(stringr)

with(dat, data.frame(X=rep(X, each=2), Y=unlist(strsplit(Y, split=" - "))))

but 'with', 'rep', 'data.frame' and 'unlist' are all in the base
package, not stringr.

Best,
Ista
> ?
>
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>
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