Hi,
I was trying to get error bars in my matplot. I looked at an earlier thread,
and the sample code that I made is:
#------------------
library(plotrix)
mat1 <- matrix(sample(1:30,10),nrow=5,ncol=2)
ses <- matrix(sample(1:3,10,replace=T),nrow=5,ncol=2)
vect <- seq(20,100,20)
rownames(mat1) <- rownames(ses) <- vect
colnames(mat1) <- colnames(ses) <- letters[1:2]
matplot(mat1,pch=c('x','o'),type = "b",lwd = 2,lty = c(1,2),
col = c("green","black"),cex.main = 1.8,cex=2,cex.lab=1.5,
main = "Graph 1",xlab = "Numbers 1",ylab = "Numbers 2",cex.axis =
1.6,axes=F)
plotCI(rep(vect,2),mat1,ses2,pch=NA,add=T,
col=rep(c("green","black"),each=nrow(mat1)))
axis(1,1:5,labels = vect,cex.axis=1.5)
axis(2,cex.axis=1.5)
#------------------
I don't get the error bars though. If I set 'add = F' in plotCI function, then
I can see the error bars, but they just can't be added to the matplot. What am
I doing wrong? Is there any other way to get the error bars?
thanks!
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