AW: AW: AW: st: AW: mfxrcspline : error message in Stata11

["Martin Weiss" <martin.weiss1@gmx.de>]

<> 

Glad it has worked out for you! I would still regard your approach as a stop-gap measure, until a permanent solution has been found. (Commands beginning with an underscore are rarely intended for consumption by "non-programming" users).




HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von SCHOUMAKER Bruno
Gesendet: Donnerstag, 15. Juli 2010 15:03
An: statalist@hsphsun2.harvard.edu
Betreff: Re: AW: AW: st: AW: mfxrcspline : error message in Stata11

***
_rmcoll `varlist', forcedrop
local xvars `r(varlist)'
poisson _d `xvars'
mfxrcspline, link(log) level(80) generate(marg margl margu)
***

Le 15/07/2010 14:59, SCHOUMAKER Bruno a écrit :
> Thanks !
>
> _rmcoll removes collinear variables if the option forcedrop is used 
> (otherwise they are flagged o.varname).
>
> It now works with the following syntax
>
> ***
> _rmcoll `varlist'==1, forcedrop
> local xvars `r(varlist)'
> poisson _d `xvars'
> mfxrcspline, link(log) level(80) generate(marg margl margu)
> ***
>
> Bruno
>
>
> Le 15/07/2010 13:41, Martin Weiss a écrit :
>> <>
>>
>>
>> " So I guess I need to find a way of dropping the collinear variables
>> variables before running the models (or use Stata10)."
>>
>>
>>
>> Try
>>
>> *************
>> help _rmcoll
>> *************
>>
>>
>> Re your attempts to -version- your way out of the problem, see NJC`s 
>> recent comment at 
>> http://www.stata.com/statalist/archive/2010-07/msg00180.html
>>
>>
>>
>>
>> HTH
>> Martin
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: owner-statalist@hsphsun2.harvard.edu 
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von 
>> SCHOUMAKER Bruno
>> Gesendet: Donnerstag, 15. Juli 2010 13:02
>> An: statalist@hsphsun2.harvard.edu
>> Betreff: Re: AW: st: AW: mfxrcspline : error message in Stata11
>>
>> Thank you for your replies !
>>
>> Below is a copy of the part around the error. I noticed that dumy102 and
>> bin103 had been transformed into o.dumy102 and o.bin103.
>>
>> In the previous version, these variables were dropped automatically from
>> the regression model when there was collinearity, but it is no longer
>> the case in stata11 .
>>
>> "As of Stata 11, variables are no longer dropped because of
>> collinearity. Instead, these variables are omitted and are labeled with
>> the “o.” operator in the column names of the resulting parameter
>> vector.", (http://www.stata.com/support/faqs/lang/post.html).
>>
>> This is the cause of the problem. When I drop the collinear variables
>> before running the model, it works (adding "version 10.1:" before the
>> regression model and/or mfxrcspline does not solve the problem)
>>
>> So I guess I need to find a way of dropping the collinear variables
>> variables before running the models (or use Stata10).
>>
>> Best,
>>
>> Bruno
>>
>>
>>
>>
>> ***********
>>       - local other : list other - notis
>>       - if "`other'" != "" {
>>       = if "_Iageg_5 _Iageg_6 _Iageg_7 _Iageg_8 _Iageg_9 _Iageg_10 rcsp1
>> rcsp2 rcsp3 rcsp4 rcsp5 dumy82 dumy8
>> >  7 dumy94 o.dumy102 bin82 bin87 bin94 bin102 bin83 bin88 bin95
>> o.bin103" != "" {
>>       - foreach var of varlist `other' {
>>       = foreach var of varlist _Iageg_5 _Iageg_6 _Iageg_7 _Iageg_8
>> _Iageg_9 _Iageg_10 rcsp1 rcsp2 rcsp3 rcsp4
>> >   rcsp5 dumy82 dumy87 dumy94 o.dumy102 bin82 bin87 bin94 bin102 bin83
>> bin88 bin95 o.bin103 {
>> o. operator not allowed
>>         sum `var' if `touse', meanonly
>>         qui drop `var'
>>         qui gen double `var' = r(mean)
>>         }
>>         }
>> ***********
>>
>> Le 15/07/2010 11:36, Martin Weiss a écrit :
>>> <>
>>>
>>>
>>> And yet, strangely, Bruno does not seem to have used the "factor 
>>> variable notation" in any way in his call to -ssc d mfxrcspline-. I 
>>> tried to recreate his problem, but all efforts failed. The 
>>> "click-to-run" examples in the help file do work as expected. So I 
>>> would ask Bruno to -set tr on- and report the area around the error...
>>>
>>>
>>>
>>> HTH
>>> Martin
>>>
>>>
>>> -----Ursprüngliche Nachricht-----
>>> Von: owner-statalist@hsphsun2.harvard.edu 
>>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Maarten 
>>> buis
>>> Gesendet: Donnerstag, 15. Juli 2010 11:31
>>> An: statalist@hsphsun2.harvard.edu
>>> Betreff: Re: st: AW: mfxrcspline : error message in Stata11
>>>
>>> --- SCHOUMAKER Bruno wrote:
>>>
>>>> I used mfxrcspline with Stata10. I recently upgraded to
>>>> Stata11, ran on Stata11 the do file that worked (and
>>>> still works) with Stata10, and I
>>>> got the following error message
>>>>
>>>> . mfxrcspline, link(log) level(80) generate(marg margl
>>>> margu)
>>>> o. operator not allowed
>>>> r(101);
>>>> r(101);
>>>>
>>>> Do you know what this message means and how to solve it ?
>>>>
>>> --- On Thu, 15/7/10, Martin Weiss wrote:
>>>
>>>> The -program- sets -version- to 10. So the new features
>>>> under 11, in particular -fvvarlist-s, are not yet
>>>> implemented.
>>>>
>>> Martin maybe on to something. None of my programs allow the new
>>> factor variable notation. This is not because I think that it is
>>> a bad idea, but just because I haven't found the time to find
>>> out how to implement it. I have tried out some examples with and
>>> without the new factor variable notation, and indeed everything
>>> works as expected as long as you don't use the factor variable
>>> notation but errors are returned as soon as the factor varaibles
>>> are used.
>>>
>>> Thanks for the report,
>>> Maarten
>>>
>>> --------------------------
>>> Maarten L. Buis
>>> Institut fuer Soziologie
>>> Universitaet Tuebingen
>>> Wilhelmstrasse 36
>>> 72074 Tuebingen
>>> Germany
>>>
>>> http://www.maartenbuis.nl
>>> --------------------------
>>>
>>>
>>>
>>>
>>>
>>> *
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>>>
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>>>
>>
>
>


-- 
Bruno SCHOUMAKER

Centre de recherche en démographie et sociétés
Université catholique de Louvain
1-17 PLace Montesquieu
1348 Louvain-la-Neuve
BELGIUM

Tel. +32 10 474136
Fax. +32 10 472952

bruno.schoumaker@uclouvain.be
www.uclouvain.be/demo

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