Identifying the distribution of a data set

I have a data set and I want to know how can I figure out using matlab which distribution does the data set follows. The major distributions I am looking for are Normal, Poisson and Negative Binomial. Can anyone kindly let me know which functions or what procedure I should follow to identify the distribution in data set

Thanks.

Answer 1

[Walter Roberson]

kstest2() would seem to be appropriate.