Message-ID: <A4E5A0B016B8CB41A485FC629B633CED4694ED9F68@GOLD.corp.lgc-group.com>
Date: 2012-07-31T09:52:39Z
From: S Ellison
Subject: Significance of correlation
If you have pearson correlation coefficients r calculated from n data points elsewhere, you can use a t test on
t.r <- r * sqrt( (n-2)/(1-r^2) )
You'll need to use pt() to get your p value from t.r, though.
S Ellison
________________________________________
I understand that to test the significance of correlation between two
PAIRED variables, the function, cor.test () can be used. However, in my
case, I have tested the correlation (i.e., Correlation Coefficient, r)
between two independent (i.e, different) variables, and now I wish to test
for the statistical significance of the correlation. Could you please
suggest how I should do that.
Thank you.
Kind regards,
Chintanu
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