MATLAB Matlab Function Fitting: Tips & Tricks

AI Thread Summary
Fitting data in MATLAB, particularly for exponential decay, can be challenging. Users often recommend using the `fminsearch` function for nonlinear fitting, as it allows for optimization of parameters without requiring a specific model form. Another common approach is to apply `polyfit` after transforming the data using logarithms, which can simplify the fitting process for exponential functions. It's important to ensure that the data is appropriately pre-processed to achieve accurate fitting results.
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Hello all,

How do people generally fit data in Matlab? I am trying to fit an exponential decay and it doesn't look straightforward. I am looking this up at the moment, but maybe people can give me good answers or starting points here.

Thank you!
 
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Think this is fminspleas
 
I usually use polyfit with the appropriate logarithms.
 

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