hard

Perform hard-thresholding given the cut-off value.

Exploratory principal component analysis for large-scale dataset, including sparse principal component analysis and sparse matrix approximation.

Fan Chen

epca

Exploratory Principal Component Analysis

hard function

<dl><dt>x</dt>
<dd>any numerical <code>matrix</code> or <code>vector</code>.</dd>
<dt>t</dt>
<dd><code>numeric</code>, the amount to hard-threshold, i.e., \(sgn(x_{ij}) (|x_{ij}-t|)_+\).</dd></dl>

Arguments

Hard-thresholding — hard

<dl>

<dt>x</dt>
<dd>any numerical <code>matrix</code> or <code>vector</code>.</dd>


<dt>t</dt>
<dd><code>numeric</code>, the amount to hard-threshold, i.e., \(sgn(x_{ij}) (|x_{ij}-t|)_+\).</dd>

</dl>

hard: Hard-thresholding

Description

Usage

Arguments