Changes in version 2.0 (2022-08-07)                   

  - fix serious bug in brunnermunzel.permutation.test
      - return TRUE in X >= Y when X is near to Y
      - Thanks to Gen Kuroki (@genkuroki)
          - refer to this tweet
            (https://twitter.com/genkuroki/status/1555694373631033344)
            (in Japanese)

                 Changes in version 1.4.1 (2020-01-07)                  

  - return the sample estimate in brunnermunzel.permutation.test
  - return 'P(X<Y) - P(X>Y)' as the sample estimate when setting 'est =
    "difference"' (new option)
      - these changes are proposed by Dr. Julian D. Karch

                 Changes in version 1.3.5 (2019-05-30)                  

  - fix serious bug (the same in version 1.3.3)
      - re-induced in version 1.3.4

                 Changes in version 1.3.4 (2019-05-21)                  

  - delete "dplyr, ggplot2" from VignetteBuilder entry in DESCRIPTION

                 Changes in version 1.3.3 (2019-04-10)                  

  - fix serious bug
      - statistics and degree of freedom are incorrect when sample sizes
        are different.

                 Changes in version 1.3.2 (2019-03-28)                  

  - fix typo

                        Changes in version 1.3.1                        

  - rewrote completely with FORTRAN (PR#12)
      - calculation of P value

                        Changes in version 1.3.0                        

  - bugfix (PR#9)
      - return appropriate values using non-overlapping data
          - estimate, confidence interval and P value
      - fix to return NA when using too large sample size
  - rewrote brunnermunzel.test with FORTRAN (PR#10)

                 Changes in version 1.2.0 (2019-03-06)                  

  - initial release
  - extensive function from brunner.munzel.test in lawstat package
      - Functions accept formula
      - Functions accept matrix and table (PR#3)
      - add option to brunnermunzel.test (PR#8)
          - perm: perform permuted Brunner-Munzel test
      - add option to brunnermunzel.permutaion.test (PR#8)
          - force: perform permuted Brunner-Munzel test whenever sample
            size is large
      - add vignette (PR#7)