[R] pearson's correlation

From: Ake Nauta <akenauta_at_hotmail.com>
Date: Sat, 05 Apr 2008 18:39:07 +0200


I used the function cor to calculate the pearson correlation coefficient between variables. However, the resulting values do not correspond to the outcome of my excel-calculations, for which I used the formula Cor(x,y)=Cov(x,y)/(SD(x)*SD(y)) So my question is: How does the function "cor" compute the pearson correlation coefficient?  

Thank you in advance,  

Ake Nauta

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