blockmax: Performs block max

In Leonardo-Bo/rgrids: Manage grids and lattices

Performs block max

Description

Given a matrix and the size of a block, returns a new matrix containing the max value for each block.

Usage

blockmax(mat, block)

Arguments

mat	numeric matrix
block	integer vector of length 2, containing the size of the block (rows, columns). If only one integer is passed, the block is square

Value

A new reduced matrix with max value of each block

Examples

mat <- matrix(1:64, nrow = 8, byrow = TRUE)
mat

blockmax(mat, 2) # or blockmax(mat, c(2, 2))

Leonardo-Bo/rgrids documentation built on July 27, 2024, 2:19 a.m.