composition

comp

Calculate a composition from coordinates with respect a given basis

A minimum set of functions to perform compositional data analysis
using the log-ratio approach introduced by John Aitchison (1982) <http://www.jstor.org/stable/2345821>. Main functions
have been implemented in c++ for better performance.

Marc ComasCuf

coda.base

A Basic Set of Functions for Compositional Data Analysis

Marc Comas-Cufí

composition function

<dl><dt>H</dt>
<dd>coordinates of a composition. Either a matrix, a data.frame or a vector</dd>
<dt>basis</dt>
<dd>basis used to calculate the coordinates</dd>
<dt>label</dt>
<dd>name given to the coordinates</dd>
<dt>sparse_basis</dt>
<dd>Is the given matrix basis sparse? If TRUE calculation are carried
taking into an account sparsity (default `FALSE`)</dd></dl>

Arguments

Get composition from coordinates w.r.t.  an specific basis — composition

<dl>

<dt>H</dt>
<dd>coordinates of a composition. Either a matrix, a data.frame or a vector</dd>


<dt>basis</dt>
<dd>basis used to calculate the coordinates</dd>


<dt>label</dt>
<dd>name given to the coordinates</dd>


<dt>sparse_basis</dt>
<dd>Is the given matrix basis sparse? If TRUE calculation are carried
taking into an account sparsity (default `FALSE`)</dd>

</dl>

composition: Get composition from coordinates w.r.t. an specific basis

Description

Usage

Value

Arguments

See Also