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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Incomplete Beta Function |

Date |
Mon, 18 Feb 2013 11:19:35 +0000 |

There is some confusion here, if only of terminology. The incomplete beta function is not something whose parameters are estimated. Your problem is presumably that you want to fit a model of some kind based on the incomplete beta function, but without knowing what that model is precisely, the only advice is to check whether a program exists and if needed to write your own -ml- program. Please note further that you are asked to use full real names on Statalist: neither Catia nor nicostat qualifies. Also, for "Maarteen" read "Maarten". Nick On Mon, Feb 18, 2013 at 11:12 AM, <nicostat@gmail.com> wrote: > Thanks Maarteen, > yes I need to estimate the parameters a and b of this beta incomplete > function by ml. > Thanks > Catia > > 2013/2/18 Maarten Buis <maartenlbuis@gmail.com>: >> On Sun, Feb 17, 2013 at 9:15 PM, <nicostat@gmail.com> wrote: >>> I would like to estimate incomplete Beta function such as this below >>> trough maximum likelihood I can performance this in Stata? >>> >>> (y*/50) = I (a, b) >>> where I(a, b) is the incomplete Beta function ratio with parameters a and b. >> >> What is your question? Do you want to incomplete Beta function? Than >> type in Stata: -findit incomplete beta function-. Do you want to >> estimate the paramters a and b? Than you need to write down your >> log-likelihood function and use -ml- to maximize that. In that case >> you will want to have access to: >> <http://www.stata.com/bookstore/maximum-likelihood-estimation-stata/>. >> > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Incomplete Beta Function***From:*nicostat@gmail.com

**Re: st: Incomplete Beta Function***From:*Maarten Buis <maartenlbuis@gmail.com>

**Re: st: Incomplete Beta Function***From:*nicostat@gmail.com

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