Dear ExpeRts,
I have the scatter plot matrix as given below. I would like the different
"sub-plots" in the scatter plot matrix to be colored differently. How do I get
all points shown in the upper-left plot (on position (1,1) in the scatter plot
matrix) to be plotted in blue, and the points shown in the plot to the right
(on position (1,2) in the scatter plot matrix) to be plotted in red? More
generally, how can I provide a matrix of colors to be used by splom() such that
all data points in the corresponding sub-plot of the scatter plot matrix are
shown in the specified color?
Cheers,
Marius
Here is the code:
library(lattice)
entrymat=matrix(0,nrow=3,ncol=3)
entrymat[1,2]="black"
entrymat[1,3]="blue"
entrymat[2,3]="red"
entrymat=t(entrymat)
splom(~iris[,1:3],superpanel=function(z,...){
mymat.df=data.frame(rows=as.vector(row(entrymat)),cols=as.vector(col(entrymat)),entries=as.vector(entrymat))
mymat.df=subset(mymat.df,cols<rows)
with(mymat.df,{
panel.text(x=rows,y=cols,labels=entries)
})
panel.pairs(z,upper.panel=panel.splom,lower.panel=function(...){},...)
},varnames=c("1","2","3")
)
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