Given the discretized functional observations, the functions `FUNTA`

and `rFUNTA`

are able to compute the functional tangential angle pseudo-depths as introduced in Kuhnt and Rehage (2016).

For FUNTA and rFUNTA, insert the data in matrix form (n by T, where n is the number of observations and T is the number of time points).

A. Rehage.

Kuhnt, S.; Rehage, A. (2016) An angle-based multivariate functional pseudo-depth for shape outlier detection. *Journal of Multivariate Analysis* 146, 325-340.

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