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Cumulative Poisson Distribution ProgramOverflow and underflow in sums prevented. Cumulative Poisson Distribution Program, CUMPOIS, one of two computer programs that make calculations involving cumulative Poisson distributions. Both programs, CUMPOIS (NPO-17714) and NEWTPOIS (NPO-17715), used independently of one another. CUMPOIS determines cumulative Poisson distribution, used to evaluate cumulative distribution function (cdf) for gamma distributions with integer shape parameters and cdf for X (sup2) distributions with even degrees of freedom. Used by statisticians and others concerned with probabilities of independent events occurring over specific units of time, area, or volume. Written in C.
Document ID
19900000352
Document Type
Other - NASA Tech Brief
Authors
Bowerman, Paul N. (Caltech)
Scheuer, Ernest M. (Caltech)
Nolty, Robert (Caltech)
Date Acquired
August 14, 2013
Publication Date
July 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 7
ISSN: 0145-319X
Subject Category
MATHEMATICS AND INFORMATION SCIENCES
Report/Patent Number
NPO-17714
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.