fitting equation in Matlab?

2 views (last 30 days)
Aseel Alamri
Aseel Alamri on 8 Nov 2020
Answered: Cris LaPierre on 9 Nov 2020
clear all;
syms V(t) a b C
cond = [V(0) == C]
eq = diff(V) == a*V-b*V*log(V)
[sol] = dsolve(eq, cond)
gompert = @(V, t) eval(subs(sol, [a b C], [V(1) V(2) V(3)]));
[v1, v2] = lsqcurvefit(gompert, [1,1,1], time', Voltage')
FitFunction = gompert(v1, time)
plot(time, Voltage, 'ro', time, FitFunction, 'b')
Can someone help with this ?

Answers (1)

Cris LaPierre
Cris LaPierre on 9 Nov 2020
Are you able to access the curve fitting app? That might be an easier way to interactively fit to your data.

Community Treasure Hunt

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

Start Hunting!