Function to generate random observation from a inverse Gaussian distribution.
References: Michael, John R.; Schucany, William R.; Haas, Roy W. (May 1976). "Generating Random Variates Using Transformations with Multiple Roots".
auto x = rInverseGaussian(2.0, 3.0) * 5;
See Implementation
Function to generate random observation from a inverse Gaussian distribution.
References: Michael, John R.; Schucany, William R.; Haas, Roy W. (May 1976). "Generating Random Variates Using Transformations with Multiple Roots".