This function returns the gamma distribution.

Syntax

GAMMADIST(x,alpha,beta,cumulative)

Arguments

This function has these arguments:

Argument	Description
x	Value at which to evaluate the distribution
alpha	Alpha parameter of the distribution
beta	Beta parameter of the distribution
cumulative	Logical value that determines the form of the function If cumulative is TRUE, then this function returns the cumulative distribution function; if FALSE, it returns the probability mass function.

Remarks

The equation for this function is:

Data Types

Accepts numeric data for all arguments. Returns numeric data.

Examples

GAMMADIST(A5,1,3,FALSE)

GAMMADIST(R5C1,2,1,TRUE)

GAMMADIST(4,3,2,TRUE) gives the result 0.3233235838

GAMMADIST(4,3,2,FALSE) gives the result 0.1353352832

Version Available

This function is available in product version 1.0 or later.

See Also

BETADIST | GAMMAINV | GAMMALN | KURT | POISSON | Statistical Functions