ploting optimization of parameters from lsqcurvefit

I am using lsqcurvefit to optimize 8 parameters. Using

'Plotfcns',{@optimplotx}

I am able to generate a barplot which plays as a movie changing with the iterations and ends with the value for each of my parameters. The x-axis is number of variables (8 for the # of parameters) and y-axis as current value. I would like to be able to plot each parameter as it optimizes over time such that the x-axis is # of iterations and y-axis is parameter value. Ideally I would like 8 different lines on this plot for each of my 8 parameters instead of 8 separate plots. I would also like to be able to export these values to a text document. Any ideas on how to do this would be great! Thanks!

Answer 1

[Alan Weiss]

You can use an output function to keep a history of your variables. This output function (in a slightly different syntax) keeps such a history. You can plot as the function progresses, and store the results for later use.

Alan Weiss

MATLAB mathematical toolbox documentation