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From |
Eric Sevigny <els21+@pitt.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Defining observation specific truncation points with truncreg |

Date |
Thu, 30 Sep 2004 18:07:24 -0400 |

Right, but what if I have ll(10) for 1997 and ll(20) for 1996 and want to model these different truncation points? Can I do that with truncreg?

--On Thursday, September 30, 2004 6:00 PM -0400 Stas Kolenikov <skolenik@gmail.com> wrote:r

-ll(a) ul(b)- means that in a given observation, the observed response can be anywhere between a and b. If it is actually smaller than a or greater than b, it is actually truncated. -truncreg, ll(0)- would be equivalent to the "standard" Tobit procedure: it says that anything at zero or below, it is actually truncated at zero. -- Stas Kolenikov http://stas.kolenikov.name * * 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/

* * 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: Defining observation specific truncation points with truncreg***From:*"Scott Merryman" <smerryman@kc.rr.com>

**References**:**Re: st: Defining observation specific truncation points with truncreg***From:*Stas Kolenikov <skolenik@gmail.com>

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