gammaqInv function

gammaqInv and gammaqInva: Inverses of normalized gammaq function

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

Returns

inverse gammaq results

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

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)

Author(s)

Matthew L. Fidler