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Re: st: question RE -ml- and ancillary parameters
At 01:53 PM 5/15/2007, Phil Schumm wrote:
I have used -ml- frequently in the past, but never with a problem
like this. Unfortunately, -_oprobit- and -_ologit- (the underlying
commands which implement -oprobit- and -ologit-) are built-in, so I
can't see how they handle this issue. My first instinct would be to
construct an -ml model- statement programmatically based on the data
and then execute it. Is this a reasonable approach, and are there
any practical limits to the number of ancillary parameters (i.e.,
equations) that can be specified this way?
Not that it is a model of programming excellence, but you might take
a look at -oglm-, which will estimate the ologit and oprobit models
as well as others. Those models are also a special case of the
models estimated by -gologit2-. Much of the code for those programs
has to do with options, error-checking, etc.; but hopefully you could
wade through and find the parts that are relevant for what you want. Rich
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
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