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st: Standard error of prediction minus constant?


From   Berk Sensoy <berksensoy@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Standard error of prediction minus constant?
Date   Sat, 30 Apr 2005 12:21:33 -0500

Hi everyone

Suppose I run

y = a + bx

the predict command with the stdp option  will produce the standard
errors of the predicted values yhat

But what I want is the standard errors of yhat - ahat, or in other
words the standard errors of bhat times x.  How do I do this?

Thanks

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