mtext() is not a lattice function. Could you not use the 'main'
argument?
Peter Ehlers
Marius Hofert wrote:
> Hello,
>
> I would like to create a sequence of plots (using a for loop). I read
> in the FAQ that print() has to be used in order to obtain any output.
> This works perfectly fine as long as I only consider one function
> call in the loop, but I would like to add mtext() to the each plot in
> the loop. Unfortunately, this did not work. Any suggestions?
>
> As you can see from the provided example, there is another problem
> with such animations: You do not see any difference in the plots
> (because only the "height" changes). Is there any possibility to keep
> a fixed scale for the colorkey (fixed labels and also fixed colors)
> and to see the different heights of the function from the colors
> (e.g. the first plot should be mainly gray (as it is the "lowest"),
> the last one mainly white (as it is the "highest")).
>
> Thanks very much!
>
> marius
>
> Here is a complete minimal example:
>
> remove(list=objects())
> library(lattice)
> for(i in 1:4){
> output_file_path<-paste("~/Desktop/test_",i,".png",sep="")
> x<-rep(seq(-3,3,length=50),50)
> y<-rep(seq(-3,3,length=50),each=50)
> z<-x*y+10*i
> trellis.device(png,color=F,file=output_file_path)
> print(wireframe
> (z~x*y,drape=T,distance=0,zoom=0.84,cuts=100,col.regions=gray
> (100:400/400),colorkey=list(tick.number=6)))
> #print(mtext(paste("Parameter= ",1,sep=""),side=3,line=0)) #This
> does not work!
> dev.off()
> }
>
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