basis-methods: Extract/Set the matrix of basis vectors from a NMF model
Description
basis and basis<- are S4 generic functions which respectively
extract and set the matrix of basis vectors (i.e. the first matrix factor)
of a NMF model.
For example, in the case of the standard NMF model $V \equiv WH$,
method basis will return matrix $W$.
coef and coef<- are S4 methods defined for the associated generic
functions from package stats (See coef).
They respectively extract and set the matrix of mixture coefficients
(i.e. the second matrix factor) of a NMF model.
For example, in the case of the standard NMF model $V \equiv WH$,
method coef will return matrix $H$.
Methods coefficients and coefficients are simple aliases for methods
coef and coef<- respectively.See Also
NMF, NMFstd, NMFfit