[R] How can I understand this sentence,and express it by means of Mathematical approach?

Liaw, Andy andy_liaw at merck.com
Mon Mar 8 15:48:32 CET 2010

If your ultimate interest is in real scientific progress, I'd suggest that you ignore that sentence (and any conclusion drawn subsequent to it).


From: bbslover
> This topic refer to independent variables reduction, as we 
> know ,a lot of
> method can do with it,however, for pre-processing independent 
> varibles, a
> method like the sentence below can reduce many variable, How can I
> understand it?
> what is  significant correlation at 5% level, what is the criterion? P
> value?or what?
> "Independent variables whose correlation with the response 
> variable was not
> significant at 5% level were removed"
> how can I calucate the correlation between them?
> thank you!
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