[R] split a string a keep the last part

Jun Shen jun.shen.ut at gmail.com
Thu Aug 28 19:41:45 CEST 2014

Hi everyone,

I believe I am not the first one to have this problem but couldn't find a
relevant thread on the list.

Say I have a string (actually it is the whole column in a data frame) in a
format like this:

test<- 'AF14-485-502-89-00235'

I would like to split the test string and keep the last part. I think I can
do the following

sub('.*-.*-.*-.*-(.*)','\\1', test)

to keep the fifth part of the string. But this won't work if other strings
have more or fewer parts separated by '-'. Is there a general way to do it?


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