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Re: st: Ologit question
From
"Anat (Manes) Tchetchik" <[email protected]>
To
[email protected]
Subject
Re: st: Ologit question
Date
Wed, 31 Oct 2012 17:00:08 +0200
so If the null is rejected for all tests (which is just what I received now:
. test _b[cut1:_cons]=_b[cut3:_cons], accum
( 1) [cut1]_cons - [cut2]_cons = 0
( 2) [cut1]_cons - [cut3]_cons = 0
chi2( 2) = 48.22
Prob > chi2 = 0.0000
it means that's the cuts are sig. different, right?
On Wed, Oct 31, 2012 at 4:47 PM, Austin Nichols <[email protected]> wrote:
> Anat (Manes) Tchetchik <[email protected]>:
> E.g.
> sysuse auto, clear
> ologit rep78 foreign length mpg
> mat li e(b)
> test _b[cut1:_cons]=_b[cut2:_cons]
> test _b[cut1:_cons]=_b[cut3:_cons], accum
> test _b[cut1:_cons]=_b[cut4:_cons], accum
>
>
> On Wed, Oct 31, 2012 at 10:12 AM, Anat (Manes) Tchetchik
> <[email protected]> wrote:
>> OK, thank you very much
>>
>> On Wed, Oct 31, 2012 at 4:08 PM, Maarten Buis <[email protected]> wrote:
>>> On Wed, Oct 31, 2012 at 2:58 PM, Anat (Manes) Tchetchik wrote:
>>>> Running -test- yeilds :
>>>> test
>>>>
>>>> ( 1) [tier_reversed]profit = 0
>>>> ( 2) [tier_reversed]oncology = 0
>>>> ( 3) [tier_reversed]cardiology = 0
>>>> ( 4) [tier_reversed]clinical_services = 0
>>>> ( 5) [tier_reversed]length_stay_tot = 0
>>>> ( 6) [tier_reversed]age = 0
>>>> ( 7) [tier_reversed]income = 0
>>>> ( 8) [tier_reversed]H_index = 0
>>>> ( 9) [tier_reversed]publications = 0
>>>> (10) [tier_reversed]doctors = 0
>>>> (11) [tier_reversed]revenue = 0
>>>> Constraint 11 dropped
>>>>
>>>> chi2( 10) = 24.65
>>>> Prob > chi2 = 0.0060
>>>> not sure I understand what it means and how it referes to the cuts
>>>
>>> That is obviously not testing the null hypothesis that you wanted to
>>> test. So first define the null hypothesis, than read the help file of
>>> -test- to see how you can use -test- to test that null hypothesis.
>>>
>>> -- Maarten
>>>
>>> ---------------------------------
>>> Maarten L. Buis
>>> WZB
>>> Reichpietschufer 50
>>> 10785 Berlin
>>> Germany
>>>
>>> http://www.maartenbuis.nl
>>> ---------------------------------
>>> *
>>> * 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/
>>
>>
>>
>> --
>> Anat Tchetchik, PhD
>> Department of Hotel and Tourism Management
>> Guilford Glazer Faculty of Business and Management
>> Ben-Gurion University of the Negev
>> P.O.Box: 653
>> Beer-Sheva, Israel, 84105
>>
>> E-mail: [email protected]
>> Phone 972-(0)8-6479735
>> Fax: 972-(0)8-6472920
>> Web: http://cmsprod.bgu.ac.il/Eng/som/hotelmanage/Staff/Academic/ChechikA.htm
>> *
>> * 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/
> *
> * For searches and help try:
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> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
--
Anat Tchetchik, PhD
Department of Hotel and Tourism Management
Guilford Glazer Faculty of Business and Management
Ben-Gurion University of the Negev
P.O.Box: 653
Beer-Sheva, Israel, 84105
E-mail: [email protected]
Phone 972-(0)8-6479735
Fax: 972-(0)8-6472920
Web: http://cmsprod.bgu.ac.il/Eng/som/hotelmanage/Staff/Academic/ChechikA.htm
*
* 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/