GAMMADIST |
GAMMADIST(x, alpha, beta, cumulative) |
Returns the probability distribution function OR the cumulative probability function for a gamma distribution. |
x | The number from the distribution. |
alpha | The first parameter to the distribution. |
beta | The second parameter to the distribution. |
cumulative | A logical value indicating the type of function to use: False (or 0) = [[probability distribution function]] (equal to) True (<> 0) = [[cumulative probability function]] (equal to or less than) |
REMARKS |
* This function is only available for backwards compatibility and should not be used. * GAMMA.DIST was added in Excel 2010 to replace this function. * The gamma distribution is a [[continuous distribution]] * If "x" < 0, then #NUM! is returned. * If "x" is not numeric, then #VALUE! is returned. * If "alpha" = 0, then #NUM! is returned. * If "alpha" is not numeric, then #VALUE! is returned. * If "beta" = 1, then the standard gamma distribution is used. * If "beta" = 0, then #NUM! is returned. * If "beta" is not numeric, then #VALUE! is returned. * The "cumulative" argument is not optional. * If "cumulative" = False, then the height of the curve at "x" is returned. * If "cumulative" = True, then the area under the curve to the left of "x" is returned. * This function is also known as the Erlang distribution, when "alpha" is a positive integer. * You can use the GAMMA.INV function to * You can use the GAMMA function to * You can use the BETA.INV function to * For the Microsoft documentation refer to support.microsoft.com |
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