[R] covariance

Ali2006 nasser-d2006 at hotmail.com
Fri Feb 17 20:36:33 CET 2012

can any one please tell me how can I Compute the covariance matrix of  (Y)
which is 5 variables .. without using a built-in function??????    

2)  how (cov) works ( I need to get the details for this function ???

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