Changes in version 1.0.2 (2025-09-28)                  

  - temporary disabled a specific unit test due to improvements of
    wilcox.test in the next release of the stats-package (dev-version of
    R)

                 Changes in version 1.0.1 (2025-07-04)                  

  - modified links in Rd-files to remove NOTEs from CRAN checks
  - updated URL RStudio

                 Changes in version 1.0.0 (2022-08-26)                  

  - updated existing type files
  - added top 10 of litter types for each location and region
  - updated the manual based on user inputs

                 Changes in version 0.9.1 (2021-09-21)                  

  - minor updates to vignette (cover page and DOI)

                 Changes in version 0.9.0 (2021-09-08)                  

  - added regional Kendall for trend analysis
  - y-axis in plots can now be truncated to improve interpretation
  - updated user manual
  - added tests

                 Changes in version 0.8.2 (2020-10-10)                  

  - make litteR robust for duplicated dates
  - explicitly added .groups to summarise()

                 Changes in version 0.8.1 (2020-07-04)                  

  - added checks for write access and non permissible path names
  - improved some error and warning messages
  - having duplicated spatial_code/date is no longer an error but a
    warning. This makes spatial aggregation more convenient.
  - in type file: renamed WAXPOL group to WAX

                 Changes in version 0.8.0 (2020-06-12)                  

  - simplified version with breaking changes
  - added outlier analysis
  - added separate litter group analysis section plus figures
  - added log-file and more quality control
  - dropped baseline analysis and power analysis
  - updated manual
  - simplified settings files
  - simplified input files

                 Changes in version 0.7.0 (2019-12-09)                  

  - added new litter types to OSPAR-groups file
  - from now on the line ending of the settings file (YAML) is CR/LF to
    facilitate MS-Windows users on poor text editors
  - changed 'litter_types' to 'litter_types_groups' in settings file
    both are currently valid for backward compatibility.
  - refinement of some warning and error messages
  - minor improvements of the documentation

                 Changes in version 0.6.6 (2019-11-25)                  

  - added wax and 'other polutants' to 'ospar-groups.csv'
  - updated documentation
  - better error message in case no data are available due to date
    selection

                 Changes in version 0.6.5 (2019-10-22)                  

  - added a section to the manual on how to load (attach) litteR for
    users less familiar with R.

                 Changes in version 0.6.4 (2019-10-17)                  

  - minor textual corrections to please CRAN

                        Changes in version 0.6.3                        

  - Added installation guide (vignette)

                 Changes in version 0.6.2 (2019-10-07)                  

  - Added 'Faeces: In_bags [121]' (SUP) to ospar-groups.csv

                        Changes in version 0.6.1                        

  - Various textual inprovements in tutorial

                        Changes in version 0.6.0                        

  - Assessment analysis has been removed.
  - Various textual inprovements

                        Changes in version 0.5.0                        

  - GUI-improvements: now only the data file is needed. The settings
    file is now always named 'settings.yaml' and the name of the
    group-file should be given in the settings file.
  - added check on column delimiter in CSV-input files (needs to be a
    comma)
  - now also ISO 8601:2004 dates (YYYY-mm-dd) are allowed in the OSPAR
    data format
  - added additional error messages in case type names are missing in
    the group file and vice versa
  - upgraded to tidyr 1.0.0

                        Changes in version 0.4.2                        

  - improved error messages in case litter types and/or groups can't be
    found
  - minor additions to the package vignette
  - added Theil-Sen intercept tot output file with summary statistics.
  - added start up messages

                 Changes in version 0.4.1 (2019-07-26)                  

  - initial release on CRAN