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Re: Rép. : Re: st: Interpretation of -mfx-


From   "Joao Ricardo F. Lima" <jricardofl@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: Rép. : Re: st: Interpretation of -mfx-
Date   Thu, 19 Jun 2008 19:40:44 -0300

Thanks Maarten.


2008/6/19, Maarten buis <maartenbuis@yahoo.co.uk>:
> --- "Joao Ricardo F. Lima" <jricardofl@gmail.com> wrote:
>> mfx (marginal effects) are change in probabilities, when we are using
>> logit, mlogit ...
>>
>> margeff (partial effects) are change in probabilities too?
>
> -mfx- will give you the first derivative, that is, the slope at a
> choses value of x, while -margeff- will compare two points on the curve
> one unit apart around that value. So -margeff- will give a discrete
> approximation of the derivative.
>
> -- Maarten
>
>
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
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-- 
-------------------------------
Joao Ricardo Lima
Professor
UFPB-CCA-DCFS
+553138923914
-------------------------------
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