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Paper detail

Computing the Oja Median in R: The Package OjaNP

The Oja median is one of several extensions of the univariate median to the multivariate case. It has many nice properties, but is computationally demanding. In this paper, we first review the properties of the Oja median and compare it to other multivariate medians. Afterwards we discuss four algorithms to compute the Oja median, which are implemented in our R-package OjaNP. Besides these algorithms, the package contains also functions to compute Oja signs, Oja signed ranks, Oja ranks, and the related scatter concepts. To illustrate their use, the corresponding multivariate one- and $C$-sample location tests are implemented.

preprint2016arXivOpen access
Daniel FischerKarl MoslerJyrki MöttönenKlaus NordhausenOleksii PokotyloDaniel Vogel
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Daniel FischerKarl MoslerJyrki MöttönenKlaus NordhausenOleksii PokotyloDaniel Vogel

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