NMF (version 0.2.2)

NMFStrategy: Factory Method for NMFStrategy Objects

Description

Creates NMFStrategy objects that wraps implementation of NMF algorithms into a unified interface.

Usage

NMFStrategy(name, method, ...)
  ## S3 method for class 'NMFStrategy,matrix,NMFfit':
run(object, y, x,
    ...)
  ## S3 method for class 'NMFStrategy,matrix,NMF':
run(object, y, x, ...)
  ## S3 method for class 'NMFStrategyFunction,matrix,NMFfit':
run(object,
    y, x, ...)
  ## S3 method for class 'NMFStrategyIterative,matrix,NMFfit':
run(object,
    y, x, .stop = NULL,
    maxIter = nmf.getOption("maxIter") %||% 2000, ...)
  ## S3 method for class 'NMFStrategyIterativeX,matrix,NMFfit':
run(object,
    y, x, maxIter, ...)
  ## S3 method for class 'NMFStrategyOctave,matrix,NMFfit':
run(object,
    y, x, ...)

Arguments

name

name/key of an NMF algorithm.

method

definition of the algorithm

...

extra arguments passed to new.

.stop

specification of a stopping criterion, that is used instead of the one associated to the NMF algorithm. It may be specified as:

• the access key of a registered stopping criterion;
• a single integer that specifies the exact number of

maxIter

maximum number of iterations to perform.

object

an object computed using some algorithm, or that describes an algorithm itself.

y

data object, e.g. a target matrix

x

a model object used as a starting point by the algorithm, e.g. a non-empty NMF model.