IDAX.PWALD_H - High-tail cumulative Wald distribution

The PWALD_H function returns the probability that the value of a variable that follows the Wald distribution is greater than x.

Syntax

IDAX.PWALD_H(DOUBLE x, DOUBLE location, DOUBLE
shape)

Parameter descriptions

x
Mandatory.
The value that is to be computed.
Data type: DOUBLE
location
Mandatory.
The mean of the distribution.
If the value of the location parameter is 0 or less, PWALD_H(x,location,shape) is null for all x values.
Min: 0.00000000001
Data type: DOUBLE
shape
Mandatory.
The shape of the distribution.
If the value of the shape parameter is 0 or less, PWALD_H(x,location,shape) is null for all x values.
Min: 0.00000000001
Data type: DOUBLE
PWALD_H(x,location,shape) = 1-PWALD(x,location,shape) for all x values, positive location values, and positive shape values.

Returned information

DOUBLE the cumulative probability distribution from minus infinity to point x.