st: Making vce(robust) the default

[Richard Williams <richardwilliams.ndu@gmail.com>]

I am writing a program and want to make vce(robust) the default if 
vce is not otherwise specified. How can I do that? My first impulse 
was to specify something like
if "`vce'" == "" local vce(robust)

But, a lot of other commands can set vce as well (svy:, robust, 
cluster) so I am not sure if that will work. vce(oim) is the usual default.
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu
WWW:    http://www.nd.edu/~rwilliam

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