The GAMMADIST function returns the gamma distribution in the specified form.
GAMMADIST(non-neg-x-value, alpha, beta, form-type)
non-neg-x-value: A number value representing the x value at which you want to evaluate the function. non-neg-x-value must be greater than or equal to 0.
alpha: A number value representing one of the shape parameters of the distribution. alpha must be greater than 0.
beta: A number value representing one of the shape parameters of the distribution. beta must be greater than 0.
form-type: A modal value that indicates which form of the exponential function to provide.
cumulative form (TRUE or 1): Return the value of the cumulative distribution form.
probability density form (FALSE or 0): Return the value of the probability density form.
Examples |
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=GAMMADIST(0.8, 1, 2, 1) returns 0.329679953964361 (the cumulative distribution form). =GAMMADIST(0.8, 1, 2, 0) returns 0.33516002301782 (the probability density form). |