invfunc function

Inverse function

This function is used to get the inverse of a monotonic function on (0,1), depending on parameters, and using the bisection method

invfunc(q, func, th, lb = 1e-12, ub = 1 - 1e-12, tol = 1e-08, nbreak = 40)

Arguments

• q: Function value (can be a vector if func() supports a vector argument)
• func: Function of one argument to be inverted
• th: Function parameters
• lb: Lower bound for the possible values
• ub: Upper bound for the possible values
• tol: Tolerance for the inversion
• nbreak: Maximum number of iterations (default is 40)

Returns

• out: Inverse values

Author(s)

Pavel Krupskii