Message-ID: <x264q730qv.fsf@viggo.kubism.ku.dk>
Date: 2005-12-02T16:46:48Z
From: Peter Dalgaard
Subject: how to make a sub list from a long list using the component name?
In-Reply-To: <1133541214.4390775e24710@webmail.uoguelph.ca>
szhan at uoguelph.ca writes:
> Hello, R users,
> I have a long list with over 20,000 elements (say foo), now I want to make a sub
> list of 30 elements from this list using the component names such as subname<-c(
> "a", "b", "d", "f", "g", "h", "o", "q",...). One way to do it is to make rest of
> elements in the list NULL, that is too silly. Is there another way to make the
> sub list?
What's wrong with foo[subname] ?
--
O__ ---- Peter Dalgaard ??ster Farimagsgade 5, Entr.B
c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907