[Limdep Nlogit List] Retaining variance-covariance matrix

William Greene wgreene at stern.nyu.edu
Fri May 11 20:45:54 EST 2007


If you add ;PARAMETERS to the command, then the retained parameter vector
and covariance matrix will include all ancillary parameters.
/B. Greene

************************************************
Professor William Greene
Department of Economics
Stern School of Business
New York University
44 West 4th St., Rm. 7-78
New York, NY   10012
Ph. 212.998.0876
Fax. 212.995.4218
URL. http://www.stern.nyu.edu/~wgreene
Email. wgreene at stern.nyu.edu
************************************************

----- Original Message -----
From: Abdulbaki Bilgic <tebrik at yahoo.com>
Date: Thursday, May 10, 2007 12:58 pm
Subject: [Limdep Nlogit List] Retaining variance-covariance matrix

> Hi Everyone,
> i would like to retain variance-covariance matrix of parameter
> estimates for the probability of being zero for calculating standard
> errors of elasticity estimates when the zero-inflated count data model
> is used. However, LIMDEP does not automatically retain this 
> matrix. Any
> suggestion would be greatly appreciated.
> Sincerely,
> 
> 
> 
> 
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