st: building GLM vce(options) relating to modified unbiased sandwich

[Ian C Zink <izink@rsmas.miami.edu>]

Hello, I am building GLMs and would like to use a modified unbiased 
sandwich estimation of variance - although this seems to not be an 
option according to stata help - there is vce(cluster /varname/) and 
vce(unbiased) but how do I combine these two?  Thank you
Ian

--
Ian C. Zink
Aquaculture Department - Division of Marine Affairs 
U. of Miami - Rosenstiel School of Marine and Atmospheric Science
4600 Rickenbacker Causeway
Miami, FL 33149
office: 305-421-4915
fax: 305-421-4675
email: izink@rsmas.miami.edu

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