Changes from version 1.0.3 to 1.0.4: * Changed Fortran file extensions from f95 to f90 for portability reasons. Changes from version 1.0.2 to 1.0.3: * Fixed a bug which made pure MA models to throw an error. * Fixed issue with try-error due to upcoming changes in R4.0.0. Changes from version 1.0.1 to 1.0.2: * Corrected citations. Changes from version 1.0.0 to 1.0.1: * Corrected the computation of the standard errors for prediction limits. * Changed testthat tests due to changes in testthat package. * Updated citation information.