NMFList-class

This class wraps a list of NMF fit objects, which may
 come from different runs of the function
 <code>nmf</code>, using different parameters, methods,
 etc.. These can be either from a single run (NMFfit) or
 multiple runs (NMFfitX).
Note that its definition/interface is very likely to
 change in the future.

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)

Renaud Gaujoux

Cathal Seoighe

NMFList-class function

<dl> <dt>algorithm</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the method names used to compute the NMF fits in
 the list. It returns <code>NULL</code> if the list is empty.</dd>
 <dt>runtime</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the CPU time required to compute all NMF fits in
 the list. It returns <code>NULL</code> if the list is empty. If
 no timing data are available, the sequential time is
 returned.</dd>
 <dt>seqtime</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the CPU time that would be required to
 sequentially compute all NMF fits stored in
 <code>object</code>.
This method calls the function <code>runtime</code> on each fit
 and sum up the results. It returns <code>NULL</code> on an
 empty object.</dd>
 <dt>show</dt>
<dd><code>signature(object = "NMFList")</code>: Show
 method for objects of class <code>NMFList</code></dd>
 
</dl>

Methods

Class for Storing Heterogeneous NMF fits — NMFList-class

<dl>

 <dt>algorithm</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the method names used to compute the NMF fits in
 the list. It returns <code>NULL</code> if the list is empty.</dd>


 <dt>runtime</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the CPU time required to compute all NMF fits in
 the list. It returns <code>NULL</code> if the list is empty. If
 no timing data are available, the sequential time is
 returned.</dd>


 <dt>seqtime</dt>
<dd><code>signature(object = "NMFList")</code>:
 Returns the CPU time that would be required to
 sequentially compute all NMF fits stored in
 <code>object</code>.
This method calls the function <code>runtime</code> on each fit
 and sum up the results. It returns <code>NULL</code> on an
 empty object.</dd>


 <dt>show</dt>
<dd><code>signature(object = "NMFList")</code>: Show
 method for objects of class <code>NMFList</code></dd>


 
</dl>

NMFList-class: Class for Storing Heterogeneous NMF fits

Description

Arguments

Methods