Hi,
I am trying to use AlgDesign and am partially successful
Two lines of code are taken from the help file
1. Line 1 (below) works fine
> dat<-gen.factorial(levels=3,nVars=3,varNames=c("A","B","C"))
2. Line 2 (below) does not work fine
> desD<-optFederov(~quad(A,B,C),dat,nTrials=14,eval=TRUE)
Here is the result I get
Error in optFederov(~quad(A, B, C), dat, nTrials = 14, eval = TRUE) :
object ".Random.seed" not found
What do i need to do, to introduce this object into the process?
Thanks in advance
Paul
----- Original Message -----
From: "marcg" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, September 27, 2007 5:21 PM
Subject: [R] different colors for two wireframes in same plot
> Hello R,
>
> According to:
>
> g <- expand.grid(x = 1:10, y = 5:15, gr = 1:2)
> g$z <- log((g$x^g$g + g$y^2) * g$gr)
> wireframe(z ~ x * y, data = g, groups = gr,
> scales = list(arrows = FALSE),
> drape = TRUE, colorkey = TRUE,
> screen = list(z = 30, x = -60))
>
> i have two wireframes in one plot.
>
> How could i change the color of the top - one to transparent (or only the
> grid). I want to give insight to the lower layer.
>
> Could one make an if-statment like (if gr==1 do drape=F or color=none) if
> gr=2 do drape=T, colorkey=T)
>
> Thanks for your help
>
> Marc
>
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>
>
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