Changes in version 1.2.5 (2024-07-07) Changes in version 1.2.4 (2023-11-01) - Remove greek letters in plot Changes in version 1.2.3 (2021-11-27) - Included applications to testing methods (e.g. WASP and NPRED) Changes in version 1.2.2 (2021-05-03) - Included the affine error model. - Included the Brownian motion models. - Included the build-up and wash-off water quality model. - Updated the vignette. Changes in version 1.2.1 (2021-04-02) - Added a vignette to the package. - Included the state-space model. Changes in version 1.2.0 (2020-11-05) - Added a NEWS.md file to track changes to the package. - Version submitted to CRAN.