tril {ramify}

Extract Lower Triangular Matrix

Description

Extract the lower triangular part of a matrix.

Usage

tril(x, k = 0, diag = TRUE)

Arguments

x

A matrix.

k

Diagonal above which to zero elements. k = 0 (the default) is the main diagonal, k < 0 is below it and k > 0 is above.

diag

Logical indicating whether to include the diagonal. Default is TRUE.

Examples

tril(ones(5, 5))
tril(ones(5, 5), diag = TRUE)