NASA NTRS · 19900000352
Cumulative Poisson Distribution Program
Abstract
Overflow 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.
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Bowerman, Paul N., Scheuer, Ernest M., Nolty, Robert. 1990-07-01. Cumulative Poisson Distribution Program. https://ntrs.nasa.gov/citations/19900000352
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