Difference between revisions of "Documentation/How Tos/Calc: GAMMAINV function"

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(See also:)
(Syntax:: correction)
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=== Syntax: ===
 
=== Syntax: ===
<tt>'''GAMMAINV(p; &alpha;; &lambda;)'''</tt>
+
<tt>'''GAMMAINV(p; &alpha;; &beta;)'''</tt>
: The gamma distribution is a family of continuous probability distributions, with two controlling parameters <tt>'''&alpha;'''</tt> and <tt>'''&lambda;'''</tt>.
+
: The gamma distribution is a family of continuous probability distributions, with two controlling parameters <tt>'''&alpha;'''</tt> and <tt>'''&beta;'''</tt>.
  
: <tt>'''GAMMAINV'''</tt> returns the value <tt>'''n'''</tt>, such that <tt>'''GAMMADIST(n; &alpha;; &lambda;; 1)'''</tt> is <tt>'''p'''</tt>.  
+
: <tt>'''GAMMAINV'''</tt> returns the value <tt>'''n'''</tt>, such that <tt>'''GAMMADIST(n; &alpha;; &beta;; 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:

GAMMADIST

Statistical functions

Functions listed alphabetically, Functions listed by category

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