Difference between revisions of "Documentation/How Tos/Calc: GAMMAINV function"
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=== Syntax: === | === Syntax: === | ||
− | <tt>'''GAMMAINV(p; α; & | + | <tt>'''GAMMAINV(p; α; β)'''</tt> |
− | : The gamma distribution is a family of continuous probability distributions, with two controlling parameters <tt>'''α'''</tt> and <tt>'''& | + | : The gamma distribution is a family of continuous probability distributions, with two controlling parameters <tt>'''α'''</tt> and <tt>'''β'''</tt>. |
− | : <tt>'''GAMMAINV'''</tt> returns the value <tt>'''n'''</tt>, such that <tt>'''GAMMADIST(n; α; & | + | : <tt>'''GAMMAINV'''</tt> returns the value <tt>'''n'''</tt>, such that <tt>'''GAMMADIST(n; α; β; 1)'''</tt> is <tt>'''p'''</tt>. |
=== Example: === | === Example: === |
Revision as of 07:21, 27 September 2008
GAMMAINV
Calculates the inverse of the cumulative GAMMADIST function.
Syntax:
GAMMAINV(p; α; β)
- The gamma distribution is a family of continuous probability distributions, with two controlling parameters α and β.
- GAMMAINV returns the value n, such that GAMMADIST(n; α; β; 1) is p.
Example:
GAMMAINV(0.86; 1; 1)
- returns approximately 2.
See also:
Functions listed alphabetically, Functions listed by category