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From |
Jorge Eduardo Pérez Pérez <perez.jorge@ur.edu.co> |

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

Subject |
Re: st: -prtest- interpreting 1/2 as variable in one sample proportion test |

Date |
Wed, 17 Apr 2013 16:50:12 -0400 |

I am aware that putting 0.5 instead of 1/2 works. Still, I believe -prtest- should be able to interpret the 1/2, as -bitest- does. Both help files state that the commands take inputs in the #p form, so both should take the same kind of inputs. I was able to replicate this in Stata MP 12.1 Thanks ! _______________________ Jorge Eduardo Pérez Pérez On Wed, Apr 17, 2013 at 3:29 PM, Richard Goldstein <richgold@ix.netcom.com> wrote: > for -prtest- you need to .5 rather than 1/2; see the help file > > Rich > > On 4/17/13 3:20 PM, Jorge Eduardo Pérez Pérez wrote: >> Dear Statalist. >> >> I found the following problem while using -prtest- on Stata S.E. 11.1 >> 64bit , on Windows 7. >> >> While running proportion tests, if I run the following binomial test: >> >> bys id: bitest above == 1/2 if round<=10 >> >> The test executes correctly. However, when using the parametric proportion test: >> >> bys id: prtest above == 1/2 if round<=10 >> >> I get: >> >> 1/2 is not a 0/1 variable >> r(450); >> >> >> It seems like -prtest- is misinterpreting the 1/2 and reading it as a >> string, so it reads as a variable and Stata tries to conduct a >> two-sample proportion test. >> >> This looks like a bug, but I may be missing something. Can someone >> replicate this in Stata 12? I am working with the 16 feb 2012 version >> of Stata 11 (The system administrators don't update Stata as they >> should) Maybe this has been corrected in an update. >> >> Thanks, >> _______________________ >> Jorge Eduardo Pérez Pérez > * > * 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/ > > * * 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: -prtest- interpreting 1/2 as variable in one sample proportion test***From:*Jorge Eduardo Pérez Pérez <perez.jorge@ur.edu.co>

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