Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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


From   Jorge Eduardo Pérez Pérez <perez.jorge@ur.edu.co>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: -prtest- interpreting 1/2 as variable in one sample proportion test
Date   Wed, 17 Apr 2013 15:20:22 -0400

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/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index