Dear Yang,
We have changed the syntax of bprobit/blogit when we updated to version
2.0-7. Please follow the new syntax, which we believe is better, in the
manual:
http://gking.harvard.edu/zelig/docs/Input_Values2.html In
particular, there are two inputs: omit and constrain. Please do not
hesitate to contact us again if you still have problems or the manual is
not clear.
Thanks,
Kosuke
---------------------------------------------------------
Kosuke Imai Office: Corwin Hall 041
Assistant Professor Phone: 609-258-6601
Department of Politics eFax: 973-556-1929
Princeton University Email: kimai(a)Princeton.Edu
Princeton, NJ 08544-1012
http://www.princeton.edu/~kimai
---------------------------------------------------------
---------- Forwarded message ----------
Date: Mon, 6 Dec 2004 18:07:53 -0500 (EST)
From: Yang Lin <yanglin(a)fas.harvard.edu>
To: zelig(a)latte.harvard.edu, owner-zelig(a)latte.harvard.edu
Cc: Chunling Lu <chunling_lu(a)harvard.edu>du>, cvidal(a)camail.harvard.edu
Subject: Zelig Questions
Dear Zelig-helper,
We are using Zelig biprobit command and ran into problems.
The simple form of the model we used is like this:
Y = f(x1, x2, z*x1, z)
where y is dummy of seeking medical care, x1 is quantile of the
expenditure, x2 is age, z is dummy of joining insurance.
By the model, z is an endogenous variable, it is the function of
z=f(x1, x2, x3)
where x1 and x2 are the same as in Y model, and x3 is an identifying
variable "relationship to the head of household".
We want to use Zelig to run biprobit model.
Our R code and data are attached here. It does not generate the
different results based on the different constraints we set.
(Also using different versions of R program and Zelig models produce
different results... we are not sure which to use)
Could you please let us know why.
Thanks very much.
Yang Lin
Cecilia Vidal
Chunling
-
Zelig Mailing List, served by Harvard-MIT Data Center
Send messages: zelig(a)latte.harvard.edu
[un]subscribe Options:
http://lists.hmdc.harvard.edu/?info=zelig
Zelig program information:
http://gking.harvard.edu/zelig/