MATLAB: Nlinfit Options – how to set them

Question

I want to change the max iterations for nlinfit, as usual the mathworks docs are totally unhelpful by saying

'[…] = nlinfit(X,y,fun,beta0,options) specifies control parameters for the algorithm used in nlinfit. options is a structure created by a call to statset'

so obvoiusly

cfit = nlinfit(xdata,ydata,f,c, MaxIter=600)

does not work, as I have to make a 'call to statset' whatever that means! It does not explain how to do this or provide an example of how this is done.

So how do I change the Max iterations?

Answer 1

doc statset

statset is a function that will create a structure variable of options; you then pass this structure into nlinfit:

opts = statset('MaxIter',600);
fit = nlinfit(xdata,ydata,f,c,opts)

opts is the structure variable.