R corrplot colors range

Question

I am using corrplot in R to plot a correlation-coefficient matrix, but my correlations range only from 0.95 to 1.00, and I don't know how to set the lower and upper bounds of colors palette.

corrplot(segCorr, order = "hclust", tl.cex = .6, 
         cl.lim = c(0.95, 1), col=colorRampPalette(c("blue","white","red"))(10))

Despite of the settings everything is in one color, but I need to see these small differences in details.

Ossetic

#28110147 seems to have a way... so try d = mvtnorm::rmvnorm(50, c(0,0, 0), matrix(c(1, 0.9, 0.9, 0.9, 1, 0.9, 0.9, 0.9, 1),3)) ; mypal = colorRampPalette(c("blue", "white", "red"))(10) ; color = rep(mypal, 100); corrplot(cor(d), order = "hclust", tl.cex = .6, cl.lim = c(0.85, 1),col=color) – Staten

Answer 1

A "hack" I sometimes use, to avoid spending too much time setting a good color-pallete, is to set is.corr = FALSE. Then we get from

with(mtcars, corrplot(cor(cbind(disp, hp, cyl)), cl.lim = c(0.7, 1)))

to...

with(mtcars, corrplot(cor(cbind(disp, hp, cyl)), cl.lim = c(0.7, 1), is.corr = FALSE))

Verine

Yup, great! Adding is.corr = FALSE to the parameters list of corrplot resolved my issue. Many thanks! – Ossetic

For those trying to get this working, it seems cl.lim has been changed to col.lim on more recent versions of the corrplot package – Selfinsurance