CLOSE {easyCODA}

Closure of rows of compositional data matrix

Description

This function closes (or normalizes) the rows of a compositional data matrix, resulting in rows summing to 1.

Usage

CLOSE(x)

Arguments

x

Compositional data matrix.

Details

Compositional data carry relative information. It is sometimes required to close the data so that each row of observations sums to 1. The function CLOSE performs the closure.

Value

The closed compositional data matrix.

Author(s)

Michael Greenacre

References

Greenacre, M. (2018), Compositional Data Analysis in Practice, Chapman & Hall / CRC.

Examples

data(cups)
apply(cups, 2, sum)
cups <- CLOSE(cups)
apply(cups, 2, sum)