Estimates the location based on third moments.

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`X` |
numeric data matrix or dataframe with at least two columns. |

`na.action` |
a function which indicates what should happen when the data contain 'NA's. Default is to fail. |

This Location Estimate is defined for *n x p* matrix X as

*
1/p ave{[(x_i-x_bar)S^{-1}(x_i-x_bar)'] x_i},*

where *x_bar* is the mean vector and *S* the regular covariance matrix.

A vector.

Klaus Nordhausen

Oja, H., Sirkiä, S. and Eriksson, J. (2006), Scatter matrices and independent component analysis, *Austrian Journal of Statistics*, **35**, 175–189.

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