Return the upper or lower triangular part of the correlation matrix.
Arguments
- x
A correlation object.
- diag
Should the diagonal be included?
- ...
Other arguments to be passed to or from other functions.
Examples
x <- correlation(mtcars, redundant = TRUE) # Generate full matrix
x <- cor_lower(x)
if (require("ggplot2")) {
ggplot(x, aes(x = Parameter2, y = Parameter1, fill = r)) +
geom_tile()
}
#> Loading required package: ggplot2
# Sorted
x <- correlation(mtcars, redundant = TRUE) # Generate full matrix
x <- cor_sort(x)
x <- cor_lower(x)
if (require("ggplot2")) {
ggplot(x, aes(x = Parameter2, y = Parameter1, fill = r)) +
geom_tile()
}