On 30.07.2014 22:13, carol white wrote:
Hi,
If I have a string of consecutive chars followed by consecutive numbers and then chars,
like "absdfds0213451ab", how to separate the consecutive chars from consecutive
numbers?
grep doesn't seem to be helpful
grep("[a-z]","absdfds0213451ab", ignore.case=T)
[1] 1
grep("[0-9]","absdfds0213451ab", ignore.case=T)
[1] 1
I'd propose something along:
result <- gsub("^([[:alpha:]]+)([[:digit:]]+)([[:alpha:]]+)$",
"\\1-\\2-\\3", "absdfds0213451ab")
If you have lots of these strings, you can convert all of them and then
do.call("rbind", strsplit(result, "-"))
or some such.
Best,
Uwe Ligges
Thanks
Carol
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