[R] extract integers from string

[Henrique Dallazuanna]

Try this:

library(gsubfn)
strapply(x, "\\d+", as.numeric, simplify = rbind)

On Thu, May 12, 2011 at 3:06 PM, Alon Honig <honeyoak at gmail.com> wrote:
> I have a vector with a long list of sentences that contain integers. I
> would like to extract the integers in a manner such that they are
> separate and manipulatable. for example:
> x[i] <- "sally has 20 dollars in her pocket and 3 marbles"
> x[i+1] <-  "30 days ago john had a 400k house"
>
> all sentences are different and contain a mixture of both integers and
> characters.
>
>  i would like to get a conditional matrix such that:
>
> y[i,j] <- 20    y[i,j+1] <- 3
> y[i+1,j] <- 30 y[i+1,j+1] <- 400
>
> based on some criteria (i.e. order, string length, keyword, etc...)
> the integers are sorted.
>
>
> most of my trouble is with finding the correct way to use gsub() or
> strsplit() such that the strings are integers that can be inputed into
> a matrix.
>
> thanks.
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O