Another example of curve fitting by the least squares method
with option to select the power of the polynomial, or
select the adjustment of the curve to exponential or potential.



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Best Regards

Carlos

Wrote

Another example of curve fitting by the least squares method
with option to select the power of the polynomial, or
select the adjustment of the curve to exponential or potential.

Hola Carlos !
Couldn't open the attached SS 7030 work sheet.
It happened another time from maybe Alvaro ?
Seemingly caused by 2 of your modules not activated.
My SS 6179 does not closed those two particular modules.

However, I have recognized the flat parabola data set.
I'm sure your proposal will have more applications.
Data sets with flat region best fit by model function,
like this one from al_nleqsolve, always assumed noisy.
Two flat parabolas attached
Thanks... Cheers ... Jean

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Wrote

Hola Carlos !
Couldn't open the attached SS 7030 work sheet.
It happened another time from maybe Alvaro ?
Seemingly caused by 2 of your modules not activated.
My SS 6179 does not closed those two particular modules.

Hola Jean

Here you have a version in 6179 of the work sheet
of the method of adjustment of curves by least squares


Ajust_by_Last_Square_Selection_Jean_V6179.sm (52 КиБ) скачан 116 раз(а).

Cheers


Carlos

Wrote

Another example of curve fitting by the least squares method
with option to select the power of the polynomial, or
select the adjustment of the curve to exponential or potential.

Hola Carlos.
Thanks for your contribution, most appreciated. More bed time reading.
VISITORS: download all, as they are minimalist Fit Classroom.
One more method is not listed wrt Polynomial fit: the Robert lsq.
Problem is that I can't make it work Mathcad ORIGIN (1)
Next Classroom is large as applied to a large collection of applied projects.
This next Classroom is mostly based on fitting parametric model function(s)

Cheers ... Jean

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... a must visit suite.
Three examples most useful for Engineering/Scientific
1. DE sol is intuitive of attempting a fit to your DE
2. Corn Thermies is more local agriculture
3. HadCRUt4 is most advanced Scientific.
So much BS & BK on that blabla parrot
BS & BK => from my old friend Ken [Bull Shit & Book Keeping].
Former Collab Theodore tried all possible orthogonal polynomials,
not to avail vs ChebyShev [I guess Russian does not lie]

Jean

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