Here are two ways for one string, both easily vectorized:
1) sum(charToRaw(x) == charToRaw("|"))2) sum(strsplit(x, "")[[1]] == "|")
In R-devel the first looks for bytes and the second for characters, and in UTF-8 locale there is a difference.
On Mon, 21 Feb 2005, Marc Mamin wrote:
Hello,
I'm looking for a function that counts the occurences of a given character within a string.
f('|','ab|c|d') => 2
More precisely, I need to complete a vector of strings to ensure that all elements have the same count of a "separator":
a|b|c a |a|b|c|d
=>
a|b|c|| a|||| |a|b|c|d
I guess that scan makes use of an internal function that would do the job...
No, it works on an internal buffer.
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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