Changes in version 0.4.0 (2024-04-15)                  

  - add functions of points2grid, points2grid_vector, points2grid_sf,
    points2grid_sv for gridding
  - add functions of awa for area weighted average
  - function of adw_terra was changed to adw_sv
  - some examples were modified.

                 Changes in version 0.3.1 (2023-05-22)                  

  - The help files for funchtions 'adw_vector', 'adw_sf' and 'adw_terra'
    are changed, and some unnecessary content has been removed.

                 Changes in version 0.3.0 (2023-04-09)                  

  - The adw interpolation function was rewritten, and the parameter
    'extent' can be a class of 'sf', 'SpatVector', or 'vector'. The
    calculation speed will be several times faster than before.
  - delete parameter of 'maskON'. The unit of parameter 'cdd' was
    converted from meter to kilometer since the version 0.3.1.

                 Changes in version 0.2.1 (2022-09-24)                  

  - fix the BugReports website.
  - add README file

                 Changes in version 0.2.0 (2022-09-22)                  

  - all of the functions of sf package were replaced by the functions of
    terra package. The calculation speed will be several times faster
    than before.
  - add parameters of extent, nmin, nmax, and maskON
  - parameter gridSize were changed to gridsize
  - delete parameters of xmin, xmax, ymin, ymax
  - delete adw_land function. The new version of the function 'adw' adds
    a parameter 'maskON' to implement the function of the mask.