Azzera filtri
Azzera filtri

To find the exponent for a data

7 visualizzazioni (ultimi 30 giorni)
Gokul Raju
Gokul Raju il 23 Ott 2013
Commentato: Gokul Raju il 23 Ott 2013
I have a non-linear data of the form: y=x^a. The data looks more like an exponential curve and I wanted to find the best value for 'a'.
Can you please suggest how to fit the data and obtain 'a' using MATLAB ?

Risposta accettata

Laurent
Laurent il 23 Ott 2013
Modificato: Laurent il 23 Ott 2013
If you want to do this only once, you could use the Curve Fitting Tool using the command 'cftool'. You only need a variable with your x-values and a variable with y-values. Select them in the Tool and select the appropriate function.
If you want to do this in a script or function, or on the command line, you can use 'lsqnonlin'
  1 Commento
Gokul Raju
Gokul Raju il 23 Ott 2013
Modificato: Gokul Raju il 23 Ott 2013
Thanks Laurent. Very useful, could try various options that are there to fit the data.

Accedi per commentare.

Più risposte (0)

Community Treasure Hunt

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

Start Hunting!

Translated by