[R] Newbie needs a count() function

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Subject: [R] Newbie needs a count() function
From: Art Salwin (salwin@mitretek.org)
Date: Wed 29 Mar 2000 - 05:41:26 EST 

Message-ID: <38E10AE6.75B533CE@mitretek.org>

Is there a count() function in R that tells how many
elements of a vector meet a certain criterion? (Need it for
generating contour plots.)

Currently I use the somewhat cumbersome
count<-length(v[v<7]) to determine, for example, the number
of elements
in v that are <7. (Note that count<-length(x[v<7]) would
also work,
where x is *any* vector that has the same length as v.) 

-- 
Art Salwin
salwin@mitretek.org
(202) 863-2985
(202) 863-2988 (fax)
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