On 22/04/2010 11:07 AM, Vlatka Matkovic Puljic wrote:
Hi!
I have v1, v2 and v3 (data in v. ranges 1 to 4)
v1
[1] 1 1 1 1 NaN 1 1 4 1 1 3
v2
[1] 1 1 1 1 1 1 1 1 1 1 1
v3
[1] 1 1 1 1 1 1 1 1 1 1 1
I want R to compare entries in v1,v2,v3 and in v4 to put largest value
(NA=0).
For example. first line v4 would be 1, but last line v4 would be 3.
What function should I use?
pmax.
Duncan Murdoch
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