Re: contain

[Tim Hesterberg <timh@insightful.com>]

Either `grep' or `regexpr'.

In some versions of S+ `grep' is platform-dependent.  From help(grep):

grep calls the regexpr function, which uses a pattern matching
language (resembling the SunOS grep command) on all platforms and is
done in C code (not as a call to any operating system
command). Earlier versions of S-PLUS supplied a version of grep that
was different on different platforms. This version is still available
as oldGrep.

>look at ?grep(), e.g.,
>...
>
>>I have a very trivial question. Is there a function in Splus to 
>>identify
>>in a vector of strings those strings that contain a certain substring.

Tim Hesterberg