R: gammapInv and gammapInva: Inverses of normalized gammap...

gammapInv {RxODE} | R Documentation

## gammapInv and gammapInva: Inverses of normalized gammap function

### Description

gammapInv and gammapInva: Inverses of normalized gammap function

### Usage

    gammapInv(a, p)

    gammapInva(x, p)

### Arguments

`a` | The numeric 'a' parameter in the upper incomplete gamma
`p` | The numeric 'p' parameter in the upper incomplete gamma
`x` | The numeric 'x' parameter in the upper incomplete gamma

### Details

With the equation:

p = gammap(a, x)

The 'gammapInv' function returns a value 'x' that satisfies the equation above

The 'gammapInva' function returns a value 'q' that satisfies the equation above

NOTE: gammapInva is slow

### Value

inverse gammap results

### Author(s)

Matthew L. Fidler

### Examples

    gammapInv(1:3, 0.5)

    gammapInv(1, 1:3 / 3.1)

    gammapInv(1:3, 1:3 / 3.1)

    gammapInva(1:3, 1:3 / 3.1)

[Package RxODE version 1.1.4 Index]