A note on the quality of random variates generated by the ratio of uniforms method

Wolfgang Hörmann

Publication: Working/Discussion PaperWU Working Paper

Abstract

The one-dimensional distribution of pseudo-random numbers generated by the ratio of uniforms methods using linear congruential generators (LCGs) as the source of uniform random numbers is investigated in this paper. Due to the two-dimensional lattice structure of LCGs there is always a comparable large gap without a point in the one-dimensional distribution of any ratio of uniforms method. Lower bounds for these probabilities only depending on the modulus and the Beyer quotient of the LCG are proved for the case that the Cauchy the normal or the exponential distribution are generated. These bounds justify the recommendation not to use the ratio of uniforms method combined with LCGs. (author's abstract)
Original languageEnglish
Place of PublicationVienna
PublisherInstitut für Statistik und Mathematik, Abt. f. Angewandte Statistik u. Datenverarbeitung, WU Vienna University of Economics and Business
Publication statusPublished - 1993

Publication series

NamePreprint Series / Department of Applied Statistics and Data Processing
No.5

WU Working Paper Series

  • Preprint Series / Department of Applied Statistics and Data Processing

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