grep for strings

I am trying to find the function where I can search for a pattern in a
text string (I thought I could use grep for this but no :().

Correct, but reading

 	?grep

and running

 	example( grep )

should show you how to do that search.

x

[1] "abcdefghijkl"

I want to find the positions (i.e. equivalent of nchar) for "cd" and
in case there are multiple hits .. then the results as a array

You will need to deal with the possibility that there are more 'cd's in 
some elements of 'text' than in others.

So, it is not obvious that an _array_ will work without some special 
tooling.

HTH,

Chuck

Thank you.

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Charles C. Berry                            Dept of Family/Preventive Medicine
cberry at tajo.ucsd.edu			    UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901