[R] separate numbers from chars in a string

[Uwe Ligges]

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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