Hello,
This should do it. You can collapse the first two instructions, but I've
left it like this for clarity.
s <- unlist(strsplit(ex, "[,)[:blank:]]"))
s <- gsub("^.*\\$", "", s)
s[nchar(s) > 0]
Rui Barradas
Em 16-09-2012 17:26, Özgür Asar escreveu:
Dear Rui Barradas and Michael Weylandt,
Many thanks for your replies.
My second question is solved now.
But I think I did not expressed my first wish in a clear way
Indeed,
in ex<-"cbind(data$response1,data$response2),
I want to extract the variable name between "$" and "," (corresponds to
response1 in this example) and the one between "$" and ")" (corresponds to
response2).
These symbols ("$", ",", ")" ) are always same, but the names (response1,
response2) might change from data to data.
Best
Ozgur
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