constraintNorm

Normalize rows of matrix to unit length or area

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

constraintNorm function

<dl><dt>x</dt>
<dd>data matrix (spectra or contributions)</dd>
<dt>d</dt>
<dd>matrix with the original spectral values</dd>
<dt>type</dt>
<dd>type of normalization ("area", "length" or "sum")</dd></dl>

Arguments

Method for normalization constraint — constraintNorm

<dl>

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


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


<dt>type</dt>
<dd>type of normalization ("area", "length" or "sum")</dd>

</dl>

constraintNorm: Method for normalization constraint

Description

Usage

Arguments