Covariance-to-correlation methods for amatrix objects

Bridge cov2cor() through Matrix's covariance-to-correlation methods so standard workflows such as cov2cor(crossprod(X)) keep working when crossprod() preserves an amatrix class.

Usage

# S4 method for class 'adgeMatrix'
cov2cor(V)

# S4 method for class 'adgCMatrix'
cov2cor(V)

Arguments

V

A square adgeMatrix or adgCMatrix.

Value

A base R correlation matrix, matching stats::cov2cor() on the corresponding host matrix.

Examples

X <- adgeMatrix(matrix(1:9 + 0, 3, 3))
cov2cor(crossprod(X))
#>           [,1]      [,2]      [,3]
#> [1,] 1.0000000 0.9746318 0.9594119
#> [2,] 0.9746318 1.0000000 0.9981909
#> [3,] 0.9594119 0.9981909 1.0000000