[R] Re: <number of ties>
Torsten Hothorn
Torsten.Hothorn at rzmail.uni-erlangen.de
Thu Mar 28 08:56:22 CET 2002
>
> hi,
>
> I would like to how to count the number of ties in a vector or matrix picking a column at a time,(ie any type of array)
>
R> x <- c(1,1,1:10)
R> duplicated(x)
[1] FALSE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
FALSE
R> sum(duplicated(x))
[1] 2
R>
and apply and friends for matrices. A subject would be helpful ...
Torsten
> themba
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