Fit operation with defined variables
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Isac Grossa
am 1 Mär. 2021
Kommentiert: Isac Grossa
am 2 Mär. 2021
Hi there. I have the following example of code:
mydata_x = random_data % isn't important how data i have
mydata_y = random_data
a = 10;
b = 0.5;
c = 3;
To calculate the fit of mydata I use to calculate d:
[fit1,gof1] = fit(mydata_x,mydata_y,'(10-0.5.*x.*d)/(3+0.5.*x.*d)');
There is a way to substitute 10,0.5 and 3 with the equivalent vaiables: a,b and c; like the following code:
[fit1,gof1] = fit(mydata_x,mydata_y,'(a-b.*x.*d)/(c+b.*x.*d)');
0 Kommentare
Akzeptierte Antwort
Steven Lord
am 1 Mär. 2021
See the "Create Fit Options and Fit Type Before Fitting" example on the documentation page for the fit function. It uses the 'problem' option to specify that certain variables in the expression to be fitted are problem parameters that will be specified when the expression is fitted, not coefficients whose values should be determined by the fitting process.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Get Started with Curve Fitting Toolbox finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!