x,alpha,beta,cumulative!This function is available for compatibility with Excel 2008 and earlier.Returns the gamma distribution!is ...

!x,alpha,beta,cumulative!!This function is available for compatibility with Excel 2008 and earlier.Returns the gamma distribution!is the value at which you want to evaluate the distribution, a nonnegative number!is a parameter to the distribution, a positive number!is a parameter to the distribution, a positive number. If beta = 1, GAMMADIST returns the standard gamma distribution!is a logical value: return the cumulative distribution function = TRUE; return the probability mass function = FALSE or omitted!