I'm using the package 'corrplot' for a figure to be used in an academic
article.
The figure must be black-and-white.
I was able to produce a figure with some shades of grey (less than fifty,
admitedly).
However, the legend is still in red color.
I need the legend be in black color.
How can I get rid of the red color in the legend produced by'corrplot'?
Thank you in advance,
Antonello Preti
Here some code for exemplification.
### call the library
library(corrplot)
library(RColorBrewer)
### toy dataset
data(mtcars)
### assign the dataset to a vector
dat <- mtcars
### corrplot with shades of grey
corrplot.mixed(cor(dat), col = rev(brewer.pal(10, "Greys")))
title("\nCollinearity when r > 0.8")
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