Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: Unknown function () error.


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Unknown function () error.
Date   Wed, 30 Aug 2006 15:44:05 +0100

I see # characters in the code. I may be missing
something but I believe that they are both meaningless
and illegal in this context. 

You presumably want some other operator. 

Nick 
[email protected] 

Vimalanand S. Prabhu
> 
> I am new to ml command. I am getting an error: Unknown	
> function (), when 
> I run the following code for negative binomial count model. 
> Is there any 
> obvious error in the code which I seem to miss out.
> 
> The L function is -exp(lambda.ui).(lambda.ui)^yi/(yi)!
> 
> program define nbreg2
> args lnf theta uu
> quietly replace `lnf' = -exp(`theta')#`uu' + 
> $ML_y1#(`theta'+ln(`uu')) - 
> lnfact($ML_y1)
> end
> ml model lf nbreg2 (jdemh=price eff) ()
> ml check
> ml maximize
> 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index