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Re: multi-dimensional SVDFIT? [message #10953]

Fri, 30 January 1998 00:00

thompson
Messages: 584
Registered: August 1991

Senior Member

khayat@enp.umd.edu writes:

> Hi,
> Does anyone know of a .pro which contains the generalized multi-dimensional
> SVDFIT routine? The standard SVDFIT in IDL is in one dimension, y=f(x).
> I am looking for a y=f(x1,x2) SVDFIT.
> Thanks
> M. Khayat

Here's a technique that should work. Define x to be a structure with N
elements, and have x1 and x2 be tags of that structure. For example,

X = {X1: 0.0, X2: 0.0}
X = REPLICATE(X, N_ELEMENTS(X1))
X.X1 = X1
X.X2 = X2

Then, simply define the function being passed to SVDFIT such that it extracts
x1 and x2 from the structure array x.

Bill Thompson

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