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Gamma Distribution

Numbers returned by the grand primitive represent the time required for a certain number of events to occur given the mean time between events. For example, the time required for a certain number of customers to arrive. The result returned by grand is always a positive number.

The grand primitive has the format

grand( mean, events )

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Probability Density Function for a node using the Gamma distribution with a mean time between events of 2 and number of events equal to 5; grand(2,5).

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