Fit exponential curve through data points in Matlab

Question

Having data of an exponential decay available, I would like to fit a curve through it. How can I do that in Matlab?

Answer 1

Matlab has a function called polyfit. It can fit curve to a data which can be represented in the form a*X^n+b*X^(n-1)+.....z. However if you are sure that the data is of some exponential decay you can try taking logarithm of the data first and then using the polyfit function. I thing that will work.