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st: Two Stata questions


From   "Krishna R. Kumar" <[email protected]>
To   [email protected]
Subject   st: Two Stata questions
Date   Tue, 31 Jan 2006 14:11:16 -0500

I am new to Stata. I have two questions.

The first relates to data management. I would like to create categorical variables by partitioning a continuous variable into two or more equal size groups, i.e. groups with equal number of observations. In SAS, PROC RANKS does this quite easily with the "groups" option. Is there a way to do such a transformation with Stata. "autocode" partitions at pre-set cut-offs but that would require figuring out the median first and then inserting it as a cutoff into "autocode."

The second relates to the "cluster" option of the "regress" command. This produces Huber-White t-stats. A by-product is that the log does not include an adjusted R-square. Can someone tell me why? Also, is there anything wrong with obtaining the adjusted R-square by running "regress" without the "cluster" option and reporting it alongside the Huber-White t-statistics?

Thanks in advance.

Krishna Kumar

Krishna R. Kumar, Ph. D.
Professor of Accountancy
School of Business GOV 406
The George Washington University
Washington DC 20052
Ph (202) 994-5976
Fax (202) 994-5164 *
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