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st: RE: Predict command


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Predict command
Date   Wed, 21 Apr 2010 14:16:47 +0100

I now read this one too. 

(You posted two different posts with the same title, not a good idea.) 

Bluntly, to quote your later word, no; because it's not a good idea. Use
the four predictor model, or the five, or both, but don't try this worst
of both worlds compromise. 

Nick 
[email protected] 

Rasika Raghavan

I want to fit values to a regression model based on only the
significant variables. I am aware that I have the option of using only
the significant varibales in the model , re running the regression and
then using the predict command. But it is likely that these
significant variables might become insignificant. Hence I do not want
to tamper with the model but just predict based on the significant
variables.Another option would be to output the coefficients and then
calculate the predicted values through the relevant multiplication and
additions. Is there but a direct way?


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