Fitting a specific linear function to data

1 vue (au cours des 30 derniers jours)
Samuele Bolotta
Samuele Bolotta le 12 Juin 2021
I have some data to which I want to fit the following function:
c1 * X + c2 * Y
I know the values for X and Y, can you give me a hint as to how I should proceed?
  2 commentaires
John D'Errico
John D'Errico le 12 Juin 2021
Do you have the curve fitting toolbox? Do you have the stats toolbox? I ask that, because while the fit itself is trivial, your immediate next question will be how to you determine the uncertainties for those parameters, and those toolboxes will do it for you.
Samuele Bolotta
Samuele Bolotta le 12 Juin 2021
Thanks for the hint! As ou can see in the screenshot, I think the only problem is I'd need to specify the function as f(X,Y), but for some reason I can only specifcy it as f(X):

Connectez-vous pour commenter.

Réponses (1)

Tarunbir Gambhir
Tarunbir Gambhir le 15 Juin 2021
You can launch the Curve Fitting Tool with 'cftool( x, y, z )' for your case. This will create a surface fit to x and y inputs and z output.

Catégories

En savoir plus sur Get Started with Curve Fitting Toolbox dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by