> strings <- c("aaaa", "bbbb","ccba").
>
> How to get "aaaa", "bbbb" that do not contain "ba" ?
I think this is what you want:
> foo <- c("aaaa", "bbbb","ccba")
> foo[-grep('ba', foo)]
[1] "aaaa" "bbbb"
cu
Philipp
--
Dr. Philipp Pagel
Lehrstuhl für Genomorientierte Bioinformatik
Technische Universität München
Wissenschaftszentrum Weihenstephan
85350 Freising, Germany
http://mips.gsf.de/staff/pagel
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