R: gammaqInv and gammaqInva: Inverses of normalized gammaq...

gammaqInv {RxODE} | R Documentation

## gammaqInv and gammaqInva: Inverses of normalized gammaq function

### Description

gammaqInv and gammaqInva: Inverses of normalized gammaq function

### Usage

    gammaqInv(a, q)

    gammaqInva(x, q)

### Arguments

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

### Details

With the equation:

q = gammaq(a, x)

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

The 'gammaqInva' function returns a value 'a' that satisfies the equation above

NOTE: gammaqInva is slow

### Value

inverse gammaq results

### Author(s)

Matthew L. Fidler

### Examples

    gammaqInv(1:3, 0.5)

    gammaqInv(1, 1:3 / 3)

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

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

[Package RxODE version 1.1.2 Index]