[R] how to capture matching words in a string ?

From: Daren Tan <daren76_at_hotmail.com>
Date: Thu, 03 Jul 2008 01:33:41 +0000

I need to capture matching words in a string, any ideas ?  

I tried using gregexpr, but it was no help. In this example, I need to capture ID23423424 and ID324234325  

> s <- "sID23423424 apple pID324234325 orange"> gregexpr("ID[0-9]+", s)[[1]][1] 2 20attr(,"match.length")[1] 10 11

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