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st: Losing precision when saving to postfile


From   Shubhabrata Mukherjee <joy_stat@yahoo.com>
To   stata forum <statalist@hsphsun2.harvard.edu>
Subject   st: Losing precision when saving to postfile
Date   Tue, 9 Aug 2011 12:04:28 -0700 (PDT)

Hello,

 I was trying to save results from an ordinal logistic regression to a postfile and was wondering why it's losing precision after some decimal places.

When I type ereturn after performing the rgression, I get

e(p) =  .0208020545704587.

Afterwards opening the postfile and typing 


display " " %12.10f pvalue gives me the following:

0.0208020546 which is fine, but when typing 


display " " %20.15f pvalue, I get 0.020802054554224


What am I doing wrong here?


Thanks,

 -Joey

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