spectrochempy.NNMF.nmf

NNMF.nmf(V, Winit, Hinit, tol, maxtime, maxiter)[source]

NMF by alternative non-negative least squares using projected gradients.

Parameters

  • V (|ndarray|) – numpy array to be analysed

  • Winit,Hinit (|ndarray|) – Initial solutions for concentration and spectral profile..

  • tol (float) – Tolerance for a relative stopping condition.

  • maxtime (float) – Limit of time.

  • maxiter (int) – Limit number for iterations.

Returns

W,H (|ndarray|) – Output solution.