Difference between revisions of "Documentation/How Tos/Calc: GAMMADIST function"
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Revision as of 13:50, 25 February 2009
GAMMADIST
Calculates values for a gamma distribution.
Syntax:
GAMMADIST(x; α; β; mode)
- The gamma distribution is a family of continuous probability distributions, with parameters α (shape) and β (scale).
- If mode is 0, GAMMADIST calculates the probability density function of the gamma distribution:
- If mode is 1, GAMMADIST calculates the cumulative distribution function of the gamma distribution:
- x must be greater than or equal to 0.
Example:
GAMMADIST(2; 1; 1; 1)
- returns approximately 0.86.
