PFLoss
Location: ..\cubatch\Model_PARAFAC\private\PFLoss.m

function Fit = PFLoss (X,Present,Delta,A,B,C,dA,d B,d C);
Description:
Compute the value of the loss function for a three way PARAFAC after taking a step of length Delta along dA,d B and d C
Inputs:
X: I x J x K array
Present: values in X to consider in estimating the loss function
Delta: step length
A,B,C: current loading matrices
dA,d B,d C: updates for the loading matrices

Outputs:
Fit: fit value with the updated loading matrices

Called by:
Model_PARAFAC\GNLineSearch, Model_PARAFAC\GNParafac
Subroutines:
Internal: None
External: nmodel

Author:
Giorgio Tomasi
Royal Agricultural and Veterinary University
MLI, LMT, Chemometrics group
Rolighedsvej 30
DK-1958 Frederiksberg C
Danmark
Last modified: 09-May-2002 22:08:12
Contact: Giorgio Tomasi, gt@kvl.dk
References