Spectral unmixing: Nonnegative matrix factorization (NMF)

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

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.

a list with the following components: