Re: st: multivariate normal regression with ml, linear form

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

<>

Stata does return "15-1" for me, pretty much what you asked for - in a 
pretty complicated way.

Also see http://www.stata-journal.com/article.html?article=pr0045

HTH
Martin
_______________________
----- Original Message ----- 
From: "Carlo Fezzi" <c.fezzi@uea.ac.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, February 18, 2009 8:26 PM
Subject: RE: st: multivariate normal regression with ml, linear form


> Thanks Maarten,
>
> Sound really a good idea! Just a follow up question. I am trying to check 
> what the code does and therefore look into the macro `u_k' to make sure it 
> contains what I want. In this simple case I want it to contain "u1 u2 u3". 
> So I am typing:
>
> -----
> clear
>
> scalar u1 = 1
> scalar u2 = 5
> scalar u3 = -1
>
> local u_k "u1"
>
> forvalues i = 2/3 {
> local u_k "`u_k' u`i'"
> display `u_k'
>      }
>
> display `u_k'
> -----
>
> Why when I ask Stata to display the macro content inside the loop it works 
> fine but when I ask it just after the loop, Stata does not return any 
> value?
>
> I guess this is probably a naive question from a beginner Stata 
> programmer, sorry!
>
> Cheers
>
> Carlo
>
>
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Maarten buis
> Sent: 18 February 2009 13:33
> To: stata list
> Subject: RE: st: multivariate normal regression with ml, linear form
>
> --- Carlo Fezzi wrote:
> > I don’t know how to define the args. For example, if it is a bivariate
> > equations it would be mu1 mu2 lnsigma1 lnsigma2 r12, but for a 4 or 5
> > equations model it would have of course more arguments. I guess it could
> > be a function of the global var neq, but I don’t know which is the
> > correct way to specify the args.
>
> In -dirifit- (downloadable from SSC) I stored the number of depedent
> variables in a global $S_k and the file dirifit_lf.ado started with:
>
> *! MLB 1.0.0 23 Mar 2006
> program dirifit_lf
>        version 8.2
>
>        local alpha_k "ln_alpha1"
>        forvalues i = 2/$S_k {
>                local alpha_k "`alpha_k' ln_alpha`i'"
>        }
>
>        args lnf `alpha_k'
>
>
> Hope this helps,
> 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 N515
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
>
>
>
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