nmf: Spectral unmixing: Nonnegative matrix factorization (NMF)

In konradmayer/hyperSpec.utils: Utility functions to work with objects of the hyperSpec class

Description

This is a wrapper around nmf from the package NMF to be used with objects of class hyperSpec.

Usage

nmf(
  x,
  ncomp = NULL,
  nrun = 1,
  method = "brunet",
  seed = "opa",
  prefix = "basis",
  ...
)

Arguments

x	a hyperSpec object.
ncomp	integer; number of pure components (factorization rank).
nrun	number of runs
method	character; use 'NMF::getNMFMethod()' to get valid Methods and refer to the documentation of 'NMF::nmf()' for further information.
seed	character; "opa" (Orthogonal Projection Approach, see omp) or one of 'NMF::getNMFSeed()'. Refer to the documentation of 'NMF::nmf()' for further information.
prefix	character; a prefix to name the pure spectra.
...	further arguments to be passed down to nmf.

Value

a list with the following components:

coefficients

coefficient matrix

basis

a hyperSpec object containing the basis (component) spectra

fit

the nmf fit as returned by 'NMF::nmf()'

See Also

nmf

konradmayer/hyperSpec.utils documentation built on May 2, 2021, 4:17 a.m.