Question about GAMMADIST

  • Thread starter Thread starter Schizoid Man
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Schizoid Man

Hi,

Does the GAMMADIST density function return the density of 1/alpha or is it
just alpha?
 
Your question is not clear. In GAMMADIST, alpha is the shape parameter,
which is entirely standard. beta is the scale parameter, which is less
standard. Many sources omit the scale parameter all together, which is
equivalent to beta=1. Some sources use a rate parameter, which is 1/beta.
If you want to use a rate parameter, simply use
=GAMMADIST(x,alpha,1/rate,cumulative)

Jerry
 
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