[R] sub data frame by expression

[Paul Lemmens]

Hoi Arne.Muller at aventis.com,

--On vrijdag 17 oktober 2003 12:11 +0200 Arne.Muller at aventis.com wrote:

> I'd like to create a sub data frame containing all rows where Batch ==
> "OLD" and keeping the 4 colums. Assume that I don't know the order of the
> rows

subset(x, Batch == 'Old') or something like that!?



-- 
Paul Lemmens
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