How to use the fitting curve of a histogram?

Hi, all

I am using histfit to find a fitting curve to my histogram. According to the observation, it should be gaussian.

As I look into the help of matlab, it says that histfit returns a vector which contains handles to the histogram and the density curve. My question is, how to use the handle to get access to the density curve? And how can I get access to the variance of the fitting curve?

Thank you very much for any help.

Best regards Wenlong

Answer 1

[Wayne King]

If you think that a Gaussian distribution provides a good fit, you can use normfit() with your data to get the estimates of mu and sigma. For example:

    X = randn(100,1)+2;
    [muhat,sigmahat] = normfit(X);