Hi All,
 
I created a two variable lm() model
 
slm<-lm(y[1:3000,8]~y[1:3000,12]+y[1:3000,15])
 
I made two predictions
 
predict(slm,newdata=y[201:3200,])
predict(slm,newdata=y[601:3600,])
 
there is no error message for either of these.
the results are identical, and identical to slm$fitted as well.
 
if this is not the right way to apply the model coefficients to a new
set of inputs, what is the right way?
 
Thank you
 
Regards,
 
Jincai Jiang
(Office) 212-761-3984 
 
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