[R] plot() accepts arrays of cex and col, xyplot() does not

[Renaud Lancelot]

plot and xyplot use different technologies and syntax. For instance,
there is a typo in your code below: you meant xyplot(y ~ x, cex = q, col
= q) instead of xyplot(x ~ y, cex = q, col = q).

If you want to reproduce your example with xyplot:

xyplot( y ~ x, groups = x,
    panel = function(x, y,...){
      panel.superpose(x, y, cex=q, col=q,... )
      })

Best,

Renaud



Wolfram Fischer - Z/I/M wrote:
> 
> An inconsistancy:
> 
>     n <- 6
>     x <- 1:n
>     y <- rnorm(1:n)
>     q <- ( x %% 3 + 1 ) * 2
>     plot( x, y, cex=q, col=q )
>     xyplot( x ~ y, cex=q, col=q )
> 
> While plot() draws different sizes and colors
> xyplot() uses only one color and size.
> 
> Wolfram Fischer
> 
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-- 
Dr Renaud Lancelot, vétérinaire
CIRAD, Département Elevage et Médecine Vétérinaire (CIRAD-Emvt)
Programme Productions Animales
http://www.cirad.fr/presentation/programmes/prod-ani.shtml (Français)
http://www.cirad.fr/presentation/en/program-eng/prod-ani.shtml (English)

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