covW

calculate the pooled within groups covariance matrix

A toolset for Geometric Morphometrics and mesh processing. This
includes (among other stuff) mesh deformations based on reference points,
permutation tests, detection of outliers, processing of sliding
semi-landmarks and semi-automated surface landmark placement.

Stefan Schlager

Morpho

Calculations and Visualisations Related to Geometric
Morphometrics

Gregory Jefferis

Dryden Ian

covW function

<dl><dt>data</dt>
<dd>a matrix containing data</dd>
<dt>groups</dt>
<dd>grouping variables</dd>
<dt>robust</dt>
<dd>character: determines covariance estimation methods in case <code>sep=TRUE</code>, when covariance matrices and group means can be estimated robustly using <code><a href="/link/MASS%3A%3Acov.rob?package=Morpho&version=2.12" data-mini-rdoc="Morpho::MASS::cov.rob">MASS::cov.rob</a></code>. Default is the standard product-moment covariance matrix.</dd>
<dt>...</dt>
<dd>additional parameters passed to <code><a href="/link/MASS%3A%3Acov.rob?package=Morpho&version=2.12" data-mini-rdoc="Morpho::MASS::cov.rob">MASS::cov.rob</a></code> for robust covariance and mean estimations.</dd></dl>

Arguments

Author

calculate the pooled within groups covariance matrix — covW

<dl>

<dt>data</dt>
<dd>a matrix containing data</dd>


<dt>groups</dt>
<dd>grouping variables</dd>


<dt>robust</dt>
<dd>character: determines covariance estimation methods in case <code>sep=TRUE</code>, when covariance matrices and group means can be estimated robustly using <code><a href='https://rdrr.io/pkg/MASS/man/cov.rob.html'>MASS::cov.rob</a></code>. Default is the standard product-moment covariance matrix.</dd>


<dt>...</dt>
<dd>additional parameters passed to <code><a href='https://rdrr.io/pkg/MASS/man/cov.rob.html'>MASS::cov.rob</a></code> for robust covariance and mean estimations.</dd>

</dl>

covW: calculate the pooled within groups covariance matrix

Description

Usage

Value

Arguments

Author

See Also

Examples