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MathGroup Archive 1993

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Mathematica: Statistics Packages - Discrete & Continuous Distributions

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: Mathematica: Statistics Packages - Discrete & Continuous Distributions
  • From: Iain "D." Currie <iain at cara.ma.hw.ac.uk>
  • Date: Tue, 21 Sep 93 09:45:03 BST


                                 MATHEMATICA

        STATISTICS PACKAGES - DISCRETE and CONTINUOUS DISTRIBUTIONS


I have come across the following problem while using the Statistics
 Packages : Continuous Distributions and Discrete Distributions. 

PDF[ NormalDisribution[0,1], {0,1} ]

will give the standard normal pdf evaluated at 0 and 1 - as you would
expect, BUT

PDF[ PoissonDistribution[1], {0,1} ]

returns only some logical checking. The problem seems to be the { } since

PDF[ PoissonDistribution[1], 1 ]

is fine but

PDF[ PoissonDistribution[1], {1} ]

fails.  

Does anyone have a fix for this?  Many thanks

Iain Currie





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