Hi,
I have a field with alpha numeric codes like,
2154333b-3208-4519-8b76-acaef5b5a479 980958a0-103b-4ba9-afaf-27b2f5c24e69
00966654-0dea-4899-b8cf-26e8300b262d
I want a derived field which will contain ONLY the numeric part before the
first alphabet and the first '-',
for example the derived field from the sample above will give me
2154333
980958
00966654
How can this be achieved in R?
P.S. I do not have much knowledge on regex. It would be of great help if
you could suggest some reading for beginners.
Thanks,
Abhinaba
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