How can I make logarithmic fitting without using lsqcurvefit function

Hi;

Using following function; I make logarithmic fitting.

fun = @(p,x) p(2)*exp(p(1)*x);
p0 = [1, 1];
p = lsqcurvefit(fun,p0,x,y)
yfit = fun(p,x);
plot(x,yfit)

but I need another approach for another project because I can't use lsqcurvefit function in this project.

Is there any method for making logarithmic fitting without using lsqcurvefit function.

Answer 1

[Stephan]

Hi,

see this example - it works with the Matlab basic function fminsearch, so that no extra Toolboxes are needed.

Best regards

Stephan