crop_tri {supportR}

Crop a Triangle from Data Object

Description

Accepts a symmetric data object and replaces the chosen triangle with NAs. Also allows user to choose whether to keep or drop the diagonal of the data object

Usage

crop_tri(data = NULL, drop_tri = "upper", drop_diag = FALSE)

Arguments

data

(dataframe, dataframe-like, or matrix) symmetric data object to remove one of the triangles from

drop_tri

(character) which triangle to replace with NAs, either "upper" or "lower"

drop_diag

(logical) whether to drop the diagonal of the data object (defaults to FALSE)

Value

(dataframe or dataframe-like) data object with desired triangle removed and either with or without the diagonal

Examples

# Define a simple matrix wtih symmetric dimensions
mat <- matrix(data = c(1:2, 2:1), nrow = 2, ncol = 2)

# Crop off it's lower triangle
supportR::crop_tri(data = mat, drop_tri = "lower", drop_diag = FALSE)