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Re: st: increase digits after decimal point in p value


From   "Elizabeth Allred" <lizard@hsph.harvard.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: increase digits after decimal point in p value
Date   Tue, 12 Jul 2011 15:37:58 -0400

Thanks Austin,

For the table I showed, I get:

scalars:
                  r(N) =  861
                  r(r) =  2
                  r(c) =  2
            r(p_exact) =  4.79750510923e-07
           r(p1_exact) =  2.92991198169e-07

I'm interested in the two sided p so I did:

ret li p_exact

scalar r(p_exact)  =  4.79750510923e-07

Unfortunately what I'm actually doing is around 3500 tables and I'd really like to scan the output and see:

Fisher's exact =                 0.00000

so I can quickly pick out tables with p < .00001. I really do want to change the display format!

Liz

On 7/12/2011 at  3:14 PM, in message
<CAGkAVYKJM9AKAmObHFpa7Y1TajS+655otdAsUGhRvKSr6T3_+Q@mail.gmail.com>, Austin
Nichols <austinnichols@gmail.com> wrote:
> Elizabeth Allred <lizard@hsph.harvard.edu> :
> 
> sysuse auto, clear
> ta rep78 for, exact
> ret li
> 
> 
> 
> On Tue, Jul 12, 2011 at 3:08 PM, Elizabeth Allred
> <lizard@hsph.harvard.edu> wrote:
>> I need to see 5 digits after the decimal point for the Fisher's exact test 
> in a tabulate request. It only shows digits.
>>
>> tab x y, exact
>>
>>                          y
>>         x |         0          1 |     Total
>> -----------+----------------------+----------
>>         0 |       512        133 |       645
>>         1 |       133         83 |       216
>> -----------+----------------------+----------
>>     Total |       645        216 |       861
>>
>>           Fisher's exact =                 0.000
>>   1-sided Fisher's exact =                 0.000
>>
>> Tabulate is a "built-in" command so I can't go in and change the display 
> format.
>>
>> How can I get what I need??
> 
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