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st: RE: Issue with -mspredict- after -movestay-


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Issue with -mspredict- after -movestay-
Date   Sun, 14 Nov 2004 16:54:02 -0000

In general, I think it is usually best in 
such circumstances to contact authors of 
user-written programs directly. I am copying this to them 
just in case they are not currently members 
of Statalist. 

Emailing Statalist directly would, 
conversely, be a sensible thing to 
do when it appears that the authors 
have passed away or disappeared; 
or if you attempt to contact the authors 
and get no response. 

In this particular case, as the original 
program appeared in the SJ and I think 
Renzo has identified a bug, I shall 
approach the authors directly myself
to discuss publication of a fix as a 
Software Update in a future issue of 
the Journal. 

Nick 
n.j.cox@durham.ac.uk 

Renzo Comolli
 
> After installing -movestay- you can use -mspredict- to form predicted
> values.
> There is an issue with -mspredict- though when the list of 
> regressors is
> very long.
> I believe the issue is with the following line
> . local param = "`e(ivar_prob)' 1"
> I think the equal sign is what gives the problem. Possibly 
> taking away the equal sign solves all the problems (but I wait for 
> confirmation on this).
> 
> If you want to see the issue do the following
> 
> . use
> http://www.worldbank.org/research/projects/poverty/programs/mo
vestay_example
, clear
. drawnorm variable1 variable2 variable3 variable4 variable5 variable6 //
the only reason for this line is to make a dataset that is big enough go
beyond the maximum character of the local
. movestay lmo_wage age age2 edu13 edu4 edu5 reg2 reg3 reg4, select(private
=m_s1 job_hold  variable1 variable2 variable3 variable4 variable5 variable6)
. mspredict newvar, xb1

You should get the error message "variabl ambiguous abbreviation".

In a previous posting on -movestay-, Nick Cox suggested that the authors of
-movestay- may not be Statalist members. In general what is the best course
of action? Email Statalist or email the authors directly? Or both?

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