[R] Lattice Cloud()-Plot with the same color for different groups

From: Hofert Marius <m_hofert_at_web.de>
Date: Tue, 27 May 2008 09:10:51 +0200


Hi,

Consider the following cloud()-plot consisting of two lines:

library(lattice)
mydata=data.frame(x=rep(1:4,2),y=rep(1:2,each=4),z=c(1,2,3,4,4,3,2,1)) cloud(z~x*y,data=mydata,groups=y,type=rep("l",2))

Now, I would like to change the color of the lines (still works fine):

cloud(z~x*y,data=mydata,groups=y,type=rep("l",2),col=c(1,2))

But when I change the color to be the same for each group, i.e. for both lines, then the groups are "combined" by a line:

cloud(z~x*y,data=mydata,groups=y,type=rep("l",2),col=c(2,2))

How do I remove this group-combining line so that the cloud()-plot looks like in the first plot above, but with the same colors for each line? Assigning the color in the data.frame mydata also did not help.

Thanks!

marius



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