On Apr 19, 2010, at 11:39 AM, servet ahmet çizmeli wrote:
Hello,
I have a stupid regexp question. I have a large data frame of
strings. I would
like to convert all occurences of :
"W.m^{-2}"
to
"W/m2"
I make the following test :
gsub(glob2rx("W.m^{-2}"), "W/m2", "W.m^{-2}")
Two problems I see. There is no reason I can see to wrap the pattern
in glob2rx, and you need to double-back-slash the "specials" when they
appear in the pattern:
> gsub("W.m\\^\\{-2\\}", "W/m2", "W.m^{-2}")
[1] "W/m2"
Seems successful on that limited test.
--
David Winsemius, MD
West Hartford, CT
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