NMFSeed-class

This class implements a simple wrapper strategy object
 that defines a unified interface to seeding methods, that
 are used to initialise NMF models before fitting them
 with any NMF algorithm.

Provides a framework to perform Non-negative Matrix
Factorization (NMF). The package implements a set of already published algorithms
and seeding methods, and provides a framework to test, develop and plug
new/custom algorithms. Most of the built-in algorithms have been optimized
in C++, and the main interface function provides an easy way of performing
parallel computations on multicore machines.

Nicolas Sauwen

Algorithms and Framework for Nonnegative Matrix Factorization
(NMF)

NMFSeed-class function

<dl class="dl-horizontal"><dt>name</dt><dd>character string giving the name of the
 seeding strategy</dd><dt>method</dt><dd>workhorse function that implements the
 seeding strategy. It must have signature
 <code>(object="NMF", x="matrix", ...)</code> and initialise the
 NMF model <code>object</code> with suitable values for fitting
 the target matrix <code>x</code>.</dd></dl>

Slots

<dl class="dl-horizontal"><dt>algorithm</dt><dd><code>signature(object = "NMFSeed")</code>:
 Returns the workhorse function of the seeding method
 described by <code>object</code>.</dd><dt>algorithm&lt;-</dt><dd><code>signature(object = "NMFSeed",
 value = "function")</code>: Sets the workhorse function of the
 seeding method described by <code>object</code>.</dd><dt>NMFSeed</dt><dd><code>signature(key = "NMFSeed")</code>: Creates
 an <code>NMFSeed</code> based on a template object
 (Constructor-Copy), in particular it uses the
 same name.</dd><dt>show</dt><dd><code>signature(object = "NMFSeed")</code>: Show
 method for objects of class <code>NMFSeed</code></dd></dl>

NMFSeed-class: Base class that defines the interface for NMF seeding methods.

Description

Arguments

Slots

Methods