I find the red font quite abrasive and the size is always too large. What are the parameters to change the font of the variables?
You can use tl.col
to change the color, tl.cex
to change the size and tl.srt
to change the rotation degree. Here is an example:
corrplot(cor(iris[,-5]), tl.col="black", tl.cex=0.8, tl.srt=70)