How to use corrplot with simple matrices

Question

I have a simple 8 by 8 matrix

M <- matrix(rnorm(64), nrow=8, ncol=8)

How should I transform it to plot it with library(corrplot)? Without transformation the error is:

corrplot.mixed(M)

Error in corrplot(corr, type = "upper", method = upper, diag = TRUE, tl.pos = tl.pos, : The matrix is not in [-1, 1]! which I guess would assume that the matrix should be [-1, 1]?

score 13 · Answer 1 · answered Oct 05 '14 at 12:55

13

Just indicate that it is not a correlation matrix:

library(corrplot)
corrplot(M, is.corr = FALSE, method = "square")

enter image description here

answered Oct 05 '14 at 12:55

agstudy

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2

What if it is a correlation matrix? – Eric Lino Jun 25 '19 at 20:03
2

Then you can do: `corrplot(cor(M))`. This will use a correlation matrix for the M matrix (with pearson method as default). – igorkf Jul 18 '20 at 15:59

How to use corrplot with simple matrices

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