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SpreadJS Overview
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- Formula Overview
- Formula Functions
  - Barcode Functions
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    - BETADIST
    - BETAINV
    - BINOMDIST
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    - GAMMADIST
    - GAMMAINV
    - HYPGEOMDIST
    - LOGINV
    - LOGNORMDIST
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    - NEGBINOMDIST
    - NORM.INV
    - NORMDIST
    - NORMSDIST
    - NORMSINV
    - PERCENTILE
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    - WEIBULL
    - ZTEST
  - Database Functions
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GAMMAINV

This function returns the inverse of the gamma cumulative distribution.

Syntax

GAMMAINV( p, alpha, beta )

Arguments

This function has these arguments:

Argument	Description
p	Probability
alpha	Alpha parameter of the distribution
beta	Beta parameter of the distribution

Remarks

This function calculates the inverse of the F probability distribution, so if p = GAMMADIST(x,...), then GAMMAINV(p,...) = x.

Data Types

Accepts numeric data for all arguments. Returns numeric data.

Examples

GAMMAINV(A3,3,4)

GAMMAINV(0.8902,R3C8,R3C9)

GAMMAINV(0.75,2,3) gives the result 8.0779035867