Changes in version 1.3.9 (2025-10-22)                  

  - Documentation fixes to pass CRAN check.

                 Changes in version 1.3.8 (2023-10-23)                  

  - Fix for change in t.test with paired data to not use the formula
    notation.

                        Changes in version 1.3.7                        

  - Added propensity score weighting.
  - Fixed a bug where the balance table wasn't combined correctly if the
    covariates were not specified in the correct order.

                 Changes in version 1.3.6 (2023-03-22)                  

  - Update to re-release to CRAN.
  - Fixes to pass CRAN check.

                        Changes in version 1.3.4                        

  - Update for compatibility with the multilevelPSA package.

                        Changes in version 1.3.3                        

  - Fixed new R CMD CHECK notes and warnings.
  - Updated for new version of party package.

                        Changes in version 1.3.0                        

  - Refactored the function for calculating balance to be shared across
    all the matching procedures.
  - Added a vignette about the impact of matching order.

                        Changes in version 1.2.0                        

  - Fixed an issue where under certain circumnstances there could be a
    NA effect estimate. These are removed.
  - Added better error checking for when a classification tree with no
    splits occurs.

                        Changes in version 1.1.0                        

  - The summary function now includes a weighted pooled estimate. This
    estimate is weighted using the inverse balance estimates so that
    bootstrap samples with better balance are weighted more to the
    estimate than those with worse balance.
  - You can now specify how the balance estimates are aggregated.
    Possible values include mean (the default), q25, q75, median, or
    max.
  - Added getPSAbootMethods and global R option "PSAboot.methods" that
    will return the default set of functions to use in PSAboot.
  - Added a number of parameters to the boxplot function including a
    tufte style from the ggthemes package.

                        Changes in version 1.0.0                        

  - Initial version of PSAboot package for bootstrapping propensity
    score analysis.