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From |
Richard Goldstein <richgold@ix.netcom.com> |

To |
statalist@hsphsun2.harvard.edu |

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

Date |
Wed, 17 Apr 2013 15:29:24 -0400 |

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/

**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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