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Exact nonparametrics in APL

Published: 01 June 1984 Publication History

Abstract

The authors present a new algorithm for the exact distribution of many nonparametric tests. The algorithm is based on a recursion formula that relates the distribution of where K1,...,Kn are iid Bernoulli [1/2] and a1,...,an are fixed p-vectors, to the distribution of Tn-1. The core idea is to realize this recursion by shifts of the p - dimensional distribution of Tn-1 in the computer main storage, which can be implemented efficiently in APL. We believe, that the method has achieved a breakthrough in the practical application of Fisher-Pitman permutation tests, but it can also be used routinely in the computation of many other tests by applying an initial transformation to the original data. A noteworthy example is the Wilcoxon test with arbitrary ties in the data, whose exact distribution can easily be computed for Nample 100.
In order to allow the direct use of these results, a complete list of the necessary APL programmes is included in the text.

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Information

Published In

cover image ACM SIGAPL APL Quote Quad
ACM SIGAPL APL Quote Quad  Volume 14, Issue 4
June 1984
362 pages
ISSN:0163-6006
DOI:10.1145/384283
Issue’s Table of Contents
  • cover image ACM Conferences
    APL '84: Proceedings of the international conference on APL
    June 1984
    391 pages
    ISBN:0897911377
    DOI:10.1145/800058

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 01 June 1984
Published in SIGAPL Volume 14, Issue 4

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