Computing standard and robustified excess kurtosis

This function computes standard and robustified skewness measures of a vector or matrix of variables.

1 | ```
rob.sk(x)
``` |

`x` |
a vector or matrix of variables |

Vector of skewness and robustified skewness

Kim, T-H. and H. White (2004),
“On More Robust Estimation of Skewness and Kurtosis”,
*Finance Research Letters*, **1**, 56–73.

`rob.kr`

,
`ljung.box.test`

,
`jb.test`

1 2 |

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