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


From   Richard Goldstein <richgold@ix.netcom.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: increase digits after decimal point in p value
Date   Tue, 12 Jul 2011 15:43:52 -0400

Liz,

you can quietly do the test and save the result, then noisily do the
table and display the result using whatever format and text you want

Rich

On 7/12/11 3:37 PM, Elizabeth Allred wrote:
> 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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