Description Usage Arguments Details Examples

Returns a (biased) covariance matrix for a data matrix

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`x` |
a data set |

`varnames` |
a list of variable names |

Accepts a data set and creates a $p\times p$ covariance matrix, where p is the number of variables. The function also accepts variable names that will be used to lable the columns of the matrix. These results are biased, as they use $\frac1n$ in the definition of the variance, rather than $\frac1n-1$.

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