constraintUnimod

forces column of matrix to have one maximum each

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

constraintUnimod function

<dl><dt>x</dt>
<dd>data matrix (spectra or contributions)</dd>
<dt>d</dt>
<dd>matrix with the original spectral values</dd>
<dt>tol</dt>
<dd>tolerance (value between 0 and 1) to take make method stable to small fluctuations</dd></dl>

Arguments

Method for unimodality constraint — constraintUnimod

<dl>

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


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


<dt>tol</dt>
<dd>tolerance (value between 0 and 1) to take make method stable to small fluctuations</dd>

</dl>

constraintUnimod: Method for unimodality constraint

Description

Usage

Arguments