I am using the svytab and I am trying to do a bivariate analysis but it actually doesn t calculate the pearson as it says there are too many values...
how can I rectify this?
thanks
ale
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: 18 September 2002 22:11
To: [email protected]
Subject: st: Murphy-Topel
I have two questions regarding James Hardin's article on the Murphy-Topel
estimator in the latest issue of the Stata Journal:
1) with respect to the Sandwich estimator, I am unclear on how the matrix
Cs2 is computed. In particular, I would appreciate if you could clarify
how the relevant columns are identified based on the variables included in
the equations (see page 260);
2) how would the computation of the Sandwich estimator change if I compute
robust standard errors by clustering the observations in the two main
equations?
Thanks,
giacomo
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