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From |
"Carlo Lazzaro" <carlo.lazzaro@tin.it> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
R: st: probability mass function for a binomial distribution |

Date |
Sun, 29 Jun 2008 16:52:02 +0200 |

Dear Statalisters, I have probably found out the answer to my last Friday thread. I do hope this may be useful for someone else on the list. However, a little concern remains about the lack among Stata 9.2/SE commands of an in-built for calculating the (probably too trivial) probability mass function for a binomial distribution, which is instead available within the most widespread spreadsheets. One more time, my grateful thought go out to Steve and Nick (in order of appearance in my incoming e-mail folder) for pointing me out the importance of a step-by-step research in dealing with Stata troubles. Kind Regards and enjoy your Sunday, Carlo ---------------------------begin example------------------------- set obs 21 g id=_n-1 g n=20 g k=_n-1 g p=.2 g Binomial=Binomial( n, k, p) g PMF_Binomial=1- Binomial if id==20 replace PMF_Binomial=Binomial[_n]- Binomial[_n+1] in 1/20 --------------------------end example---------------------------- -----Messaggio originale----- Da: Carlo Lazzaro [mailto:carlo.lazzaro@tin.it] Inviato: venerd́ 27 giugno 2008 18.52 A: 'statalist@hsphsun2.harvard.edu' Oggetto: st: mass probability function for a binomial distribution Dear Statalisters, since my previous research in the FAQs was unsuccessful, I would like to know whether is there a way to obtain the mass probability function for a binomial distribution (n 20; k=4; p=.2) with Stata 9/2 SE. Thanks a lot for your kindness and for your time. Kind Regards, Carlo * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**RE: st: probability mass function for a binomial distribution***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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