Inverse Transformed Density Rejection for Unbounded Monotone Densities

Wolfgang Hörmann, Josef Leydold, Gerhard Derflinger

Publication: Working/Discussion PaperWU Working Paper

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A new algorithm for sampling from largely abitrary monotone, unbounded densities is presented. The user has to provide a program to evaluate the density and its derivative and the location of the pole. Then the setup of the new algorithm constructs different hat functions for the pole region and for the tail region, respectively. For the pole region a new method is developed that uses a transformed density rejection hat function of the inverse density. As the order of the pole is calculated in the setup, conditions that guarantee the correctness of the constructed hat functions are provided. Numerical experiments indicate that the new algorithm works correctly and moderately fast for many different unbounded densities. (c) ACM, (2007). This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. (author's abstract)
Original languageEnglish
Place of PublicationVienna
PublisherDepartment of Statistics and Mathematics, WU Vienna University of Economics and Business
Publication statusPublished - 2007

Publication series

SeriesResearch Report Series / Department of Statistics and Mathematics

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WU Working Paper Series

  • Research Report Series / Department of Statistics and Mathematics

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