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POLY_FIT gives wrong answer ! [message #19941]

Tue, 09 May 2000 00:00

Henk Schets
Messages: 4
Registered: May 2000

Junior Member

Hi,

Maybe all of you already know this, but I didn't and I could not find
any documentation about it.
The problem : I have two long arrays (x- and y-values) and I made
subarrays out of them by using an array as subscript, like
x = fltarray(l)
y = fltarray(l)
indexarr = longarray(l)
(you know, the way to sort different arrays together)
However, when I do something like out =
poly_fit(x[indexarr],y[indexarr]), the outcome is simply wrong ! I know
this because other programs gave another solution (all the same).
The only way to do it right is by making other arrays like x2 and y2 and
doing a poly_fit on it.

Is this a known issue ?

Greetings,

Henk

----

Henk Schets
Royal Meteorological Institute of Belgium (R.M.I.B.)
Ringlaan 3
B-1180 Brussels
Belgium

Tel: (+32) 2 3730597
Fax: (+32) 2 3751259
E-mail: Henk.Schets@oma.be

WWW server: http://www.meteo.oma.be/IRM-KMI

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[Message index]

		POLY_FIT gives wrong answer ! By: Henk Schets on Tue, 09 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: Henk Schets on Fri, 12 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: steinhh on Thu, 11 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: davidf on Thu, 11 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: davidf on Thu, 11 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: Henk Schets on Thu, 11 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: davidf on Wed, 10 May 2000 00:00
		Re: POLY_FIT gives wrong answer ! By: Henk Schets on Wed, 10 May 2000 00:00

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