Changes in version 0.5.0                        

  - Implement function for filter by area of interest (wave_arrival)
  - ray and ray_source functions now exports in csv instead of RDS.

                        Changes in version 0.4.0                        

  - Substitute "expand.grid" by "data.frame" in ray_source function
  - fix bugs in documentation

                        Changes in version 0.3.0                        

  - Create betam, Ktotal, and Ks function from betaks
  - Export netcdf files to be read by GrADS

                        Changes in version 0.2.0                        

  - Add correction for longitudes bigger than 180
  - Add DOI with zenodo in README

                        Changes in version 0.1.1                        

  - Add tryCatch to the ray_path function in order to avoid stopping
    when the wave does not propagate: [geo(i + 1)] problem
  - Add sep = ";" in write.csv function at ray and ray_source functions
  - Fix typo error in documentation of betaks function, replacing lat by
    lon

                 Changes in version 0.1.0 (2020-11-14)                  

  - ray_source returns great circles
  - betaks now returns spatial polygons
  - trigonometric interpolation was added
  - Preparing submission to CRAN

                     Changes in version 0.0.0.9000                      

  - First news
  - Preparing submission to CRAN and JOSS