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Annals of the Institute of Statistical Mathematics

, Volume 52, Issue 3, pp 415–425

# Joint Distribution of Rises and Falls

• James C. Fu
• W.Y. Wendy Lou
Article

## Abstract

The marginal distributions of the number of rises and the number of falls have been used successfully in various areas of statistics, especially in non-parametric statistical inference. Carlitz (1972, Duke Math. J.39, 268–269) showed that the generating function of the joint distribution for the numbers of rises and falls satisfies certain complex combinatorial equations, and pointed out that he had been unable to derive the explicit formula for the joint distribution from these equations. After more than two decades, this latter problem remains unsolved. In this article, the joint distribution is obtained via the probabilistic method of finite Markov chain imbedding for random permutations. A numerical example is provided to illustrate the theoretical results and the corresponding computational procedures.

Eulerian and Simon Newcomb numbers finite Markov chain imbedding transition probability matrix

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## Copyright information

© The Institute of Statistical Mathematics 2000

## Authors and Affiliations

• James C. Fu
• 1
• W.Y. Wendy Lou
• 2
1. 1.Department of StatisticsUniversity of ManitobaWinnipeg, ManitobaCanada
2. 2.Department of Biomathematical SciencesMount Sinai School of MedicineNew YorkU.S.A.