R help - Mar 2010 - How can I understand this sentence,and express it by means of Mathematical approach？

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

Cheers,
Andy 

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!
> -- 
> View this message in context: 
> http://n4.nabble.com/How-can-I-understand-this-sentence-and-ex
press-it-by-means-of-Mathematical-approach->
tp1584036p1584036.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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