You could try:
library(stringr)
simplify2array(str_extract_all(xx, perl('(?<=[A-Z]|\\:)\\d+')))
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] "24" "24" "24" "24" "24" "24"
[2,] "57" "86" "119" "129" "138" "163"
A.K.
On Friday, August 1, 2014 10:49 AM, "Doran, Harold" <hdo...@air.org> wrote:
I have done an embarrassingly bad job using a mixture of gsub and strsplit to
solve a problem. Below is sample code showing what I have to start with (the
vector xx) and I want to end up with two vectors x and y that contain only the
digits found in xx.
Any regex users with advice most welcome
Harold
xx <- c("S24:57", "S24:86", "S24:119", "S24:129", "S24:138", "S24:163")
yy <- gsub("S","\\1", xx)
a1 <- gsub(":"," ", yy)
a2 <- sapply(a1, function(x) strsplit(x, ' '))
x <- as.numeric(sapply(a2, function(x) x[1]))
y <- as.numeric(sapply(a2, function(x) x[2]))
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