constraintClosure

Force rows of data sum up to given value

Projection based methods for preprocessing, exploring and analysis of multivariate data used in chemometrics. S. Kucheryavskiy (2020) <doi:10.1016/j.chemolab.2020.103937>.

Sergey Kucheryavskiy

mdatools

Multivariate Data Analysis for Chemometrics

constraintClosure function

<dl><dt>x</dt>
<dd>data matrix (spectra or contributions)</dd>
<dt>d</dt>
<dd>matrix with the original spectral values</dd>
<dt>sum</dt>
<dd>which value the specra or contributions should sum up to</dd></dl>

Arguments

Method for closure constraint — constraintClosure

<dl>

<dt>x</dt>
<dd>data matrix (spectra or contributions)</dd>


<dt>d</dt>
<dd>matrix with the original spectral values</dd>


<dt>sum</dt>
<dd>which value the specra or contributions should sum up to</dd>

</dl>

constraintClosure: Method for closure constraint

Description

Usage

Arguments