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waterpuma (waterpuma) 于 (Wed Jan 2 14:15:08 2008) 提到:
This is a problem form onsite interview.
There are more than 100 variables. Based on those variables, how to
regression a model for one depend variable? We need use all those variables
or pick up some variables? If we need choose some variables, which is the
best way to choose it, let the option of stepwise do it or we should use
factor and princomp do it?
Thanks for any response!
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