positionToIndex: positionToIndex

In jaredlander/useful: A Collection of Handy, Useful Functions

positionToIndex

Description

Given row and column positions calculate the index.

Usage

positionToIndex(row, col, nrow = max(row))

Arguments

row	Vector specifying row positions
col	Vector specifying column positions
nrow	The number of rows in the matrix

Details

With row and column positions this computes the index, starting at (1,1) working down rows then across columns.

Value

A vector of indices

Author(s)

Jared P. Lander

Examples

positionToIndex(1, 2, 2)
positionToIndex(row=c(1, 1, 2, 1, 3), col=c(1, 2, 2, 3, 3), nrow=3)
positionToIndex(rep(1:4, 4), rep(1:4, each=4), nrow=4)
positionToIndex(rep(c(1, 3, 5), 3), rep(1:3, each=3), nrow=5)

jaredlander/useful documentation built on Nov. 4, 2023, 10:56 a.m.