[R] Finding the correlation coefficient of two stocks

Pete Brecknock Peter.Brecknock at bp.com
Sun Jan 30 16:36:56 CET 2011

Dieter is correct, the lengths of the 2 series are different

Try ....

s = merge(s1,s2)

corr = cor(s[,"Close.s1"],s[,"Close.s2"],use="pairwise.complete.obs")



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