MATLAB: How to calculate FWHM from a histogram

fwhmhistfit

Hi all,

I have a vector, from which I get a histogram. I can get the fit of this histogram using histfit, but I need to calculate the FWHM from this. Can anyone help me with that?

Many thanks, Michal

Best Answer

Use one of the distribution-fitting functions or the interactive tool dfittool instead to get the parameters of the result from which you can evaluate the pdf.

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MATLAB: KStest for unimodal and bimodal models

Hi,

Kstest(x) returns a test decision for the null hypothesis that the data in vector x comes from a specified standard normal distribution or it does not come from such a distribution

If the result is one the test rejects the null hypothesis at default significance level(5%)

From your data

Data=ObservedData(:,1); 
x=(Data-3.2)/0.44; %specified mean and standard deviation
r=kstest(x) ;

Similarly ,for a bimodal distribution, check the kstest for each distribution seperately

Refer to the link kstest for more information

MATLAB: How can i calculate inverse of standard normal cumulative distribution function in matlab

Why wold you not use norminv if you have it? The first line of the help reads:

"norminv Inverse of the normal cumulative distribution function (cdf)."

Read the help.

For those who lack norminv (thus the stats toolbox) this reduces to a simple transformation of erfcinv.

Best Answer

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MATLAB: KStest for unimodal and bimodal models

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