Difference between revisions of "Documentation/How Tos/Calc: FDIST function"
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== FDIST == | == FDIST == | ||
− | + | Calculates values for an F-distribution. | |
− | === | + | === Syntax: === |
<tt>'''FDIST(x; r1; r2)'''</tt> | <tt>'''FDIST(x; r1; r2)'''</tt> | ||
− | : <tt>'''r1'''</tt> | + | : <tt>'''r1'''</tt> and <tt>'''r2'''</tt>, which are positive integers, are the degrees of freedom parameters for the F-distribution. |
− | : <tt>'''x'''</tt> | + | : <tt>'''x'''</tt> must be greater than or equal to 0. |
− | : <tt>'''FDIST'''</tt> | + | : <tt>'''FDIST'''</tt> returns the area of the right tail of the probability density function for the F-distribution, calculating: |
::[[Image:Calc_fdist_equation.png]] | ::[[Image:Calc_fdist_equation.png]] | ||
− | === | + | === Example: === |
<tt>'''FDIST(1; 4; 5)'''</tt> | <tt>'''FDIST(1; 4; 5)'''</tt> | ||
− | : | + | : returns approximately 0.485657. |
=== Issues: === | === Issues: === | ||
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* [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | * [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | ||
* [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | * [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | ||
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Revision as of 08:29, 17 November 2009
FDIST
Calculates values for an F-distribution.
Syntax:
FDIST(x; r1; r2)
- r1 and r2, which are positive integers, are the degrees of freedom parameters for the F-distribution.
- x must be greater than or equal to 0.
- FDIST returns the area of the right tail of the probability density function for the F-distribution, calculating:
Example:
FDIST(1; 4; 5)
- returns approximately 0.485657.
Issues:
- The forthcoming international standard ODFF calls this function LEGACY.FDIST, and defines a new FDIST function.