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89578251
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Joined: December 26th, 2008, 1:21 am

Q-Q Plot Matlab

February 15th, 2010, 3:13 am

How to perform a Q-Q Plot versus a Student-t distribution with 3 degrees of freedom instead of normal distribution in Matlab?
 
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msperlin
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Q-Q Plot Matlab

February 15th, 2010, 10:47 am

QuoteOriginally posted by: 89578251How to perform a Q-Q Plot versus a Student-t distribution with 3 degrees of freedom instead of normal distribution in Matlab?One easy way would be to simulate a t dist with 3 degrees of freedom, compute the cumulative densities and plot it against the cumulative density of the data.
 
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Hansi
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Joined: January 25th, 2010, 11:47 am

Q-Q Plot Matlab

February 15th, 2010, 11:26 pm

Does this work assuming your data is in x?qqplot(x,tcdf((min(x):0.05:max(x)),3))