Changes in version 1.0.2 (2023-11-14)                  

  - Package-level documentation now accessible via package?igcop.

                 Changes in version 1.0.1 (2021-10-13)                  

  - Ensure specification of bd,eps,mxiter parameters match across all
    calls to the Newton Raphson algorithms.
  - Add tests for interp_gen_D1 at 0.
  - Added package documentation.

                        Changes in version 1.0.0                        

  - The package now has a C++ backend, by converting the four
    Newton-Raphson algorithms and their dependencies from R to C++.

Smaller changes:

  - Renamed tau argument to p in IG and IGL quantile functions.
  - Removed igl_gen_DD and igamma() internal functions, which were not
    used for copula quantities.

                        Changes in version 0.2.0                        

  - Added a NEWS.md file to track changes to the package.
  - Completed the collection of distributional quantities to match that
    of the CopulaModel package.
  - Computations of quantile functions are now more robust.
  - Changed the parameterization of the copula families to make them
    more numerically stable.
      - Small values of the parameter alpha (previously = k - 1) are now
        reliable.
  - Placed the theta and alpha parameters of the IG copula as their own
    arguments.

                        Changes in version 0.1.0                        

  - Computational tools for IG and IGL copulas are now available, using
    the original parameterization of these copulas as defined in Coia
    (2017) thesis.