[R] Regular expression help
murdoch.duncan at gmail.com
Mon Oct 9 17:02:40 CEST 2017
I have a file containing "words" like
where there may be multiple words on a line (separated by spaces). The
a, b, and c strings can contain non-space, non-slash characters. I'd
like to use gsub() to extract the c strings (which should be empty if
there are none).
A real example is
"f 147/1315/587 2820/1320/587 3624/1321/587 1852/1322/587"
which I'd like to transform to
" 587 587 587 587"
Another real example is
"f 1067 28680 24462"
which should transform to " ".
I've tried a few different regexprs, but am unable to find a way to say
"transform words by deleting everything up to and including the 2nd
slash" when there might be zero, one or two slashes. Any suggestions?
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