Achim Zeileis <[EMAIL PROTECTED]> writes:
> > In fact, it is still not clear to me why it recycles the ramp even
> > though it has a surplus of colours (grey levels)! Why not just ignore
> > the surplus colours?
>
> It does!
> cols is a vector of length 42 and only the first 30 are used. Try to
> use your persp call below with col = cols and col = cols[1:30].
> Z
Just to rub it in, consider
> M
[,1] [,2] [,3] [,4] [,5]
[1,] 2 3 4 5 6
[2,] 3 4 5 6 7
[3,] 4 5 6 7 8
[4,] 5 6 7 8 9
[5,] 6 7 8 9 10
> M2 <- matrix(M[1:16],4,4)
> M2
[,1] [,2] [,3] [,4]
[1,] 2 6 6 6
[2,] 3 3 7 7
[3,] 4 4 4 8
[4,] 5 5 5 5
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907
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