[R] inserting one backslash

RH Koning mailing-lists at rhkoning.com
Wed Feb 1 18:49:48 CET 2006


Hello, I am not very familiar with regular expressions and escaping. I 
need to replace the %-signs in a character vector with elements as 
"income 0%-33%# to be replaced by "income 0\%-33\%" (for later use in 
LaTeX). Using

gsub("%","\\%","income 0%-33%")

does not give the desired result. However, gsub("%","\\\\%","income 
0%-33%") gives "income 0\\%-33\\%", one backslash too much. What is the 
appropriate expression to get the desired output (one backslash before 
each %-sign)?

I am using R 2.1.0 on suse linux 9.2.

Thanks, Ruud




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