There is no demo for
datafit.sci with a nontrivial W matrix:
[p,err]=datafit([imp,] G [,DG],Z [,W],[contr],p0,[algo],[df0,[mem]],
[work],[stop],['in'])
The help page says:
W: weighting matrix of size ne x ne (optional; defaut no ponderation)
But if W weighs the data-points ( their number is nz ) , then W should
be a vector of length nz?
If you try to run datafit with W = eye(ne,ne) or W=ones(nz,1) etc., you
get an error message ?????
Thanx/Roland
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