Changes in version 0.3-5 (2025-05-17)                  

  - Now "Depends" on the survival package to bring in the strata and
    cluster functions (#141).

                 Changes in version 0.3-4 (2024-05-31)                  

  - Using .lm.fit() within slm.fit.csr.fixed given breaking changes in
    SparseM::chol() (#134)

                 Changes in version 0.3-3 (2023-03-10)                  

  - Adjusted arguments to xtable.xbal() to match the generic. (#131)

                 Changes in version 0.3-2 (2023-02-04)                  

  - Adjusted terminology on balanceplot() plots when using
    absolute=TRUE. (#129)
  - Updated some tidyverse/ggplot2 code to deal with deprecations.
  - Using bibentry() in citation to address deprecation.

                 Changes in version 0.3-1 (2022-08-10)                  

  - Skipped tests that cause problems with systems using the ATLAS
    linear algebra library.

                 Changes in version 0.3-0 (2022-07-20)                  

  - Exporting broom::glance() and broom::tidy() methods for balance test
    objects, a work in progress (#90).
  - Addressed error relating to setting of pseudo-inversion tolerances
    (#103). xBalance stops short of correcting the error, to maintain
    back-compatibility; but it gains a new argument,
    pseudoinversion_tol, with which it can readily be fixed.
  - New balanceTest function extends functionality of xBalance:
      - Support for clustered designs
      - More use of formula interface
      - Multiple comparison adjustments for individual covariate tests
      - Support for unit level weighting
  - Introduced ggplot2 based plotting. Optional for xBalance objects;
    default for new balanceTest objects.

                         Changes in version 0.2                         

This was an internal release not placed on CRAN.

                 Changes in version 0.1-18 (2022-02-28)                 

This is a maintenance release.

  - Ensured that the package was compatible with R 4.1.2

                 Changes in version 0.1-17 (2019-07-10)                 

This is a maintenance release.

  - Ensured that the package was compatible with R 3.6.0

                 Changes in version 0.1-16 (2018-06-19)                 

This is a maintenance release.

  - Fixed a problem where the test suite was calling an external package
    that was not a formal dependency of the core functionality of the
    package.

                 Changes in version 0.1-15 (2016-05-30)                 

This is a maintenance release.

  - Fixed an obscure bug in which we indirectly fiddled with data.table
    related global options (#69)
  - Disabled tests of RSVGTipsDevice-dependent functionality on Windows
    platforms, where (as of this writing) RSVGTipsDevice does not build
    and check reliably and is not distributed in binary through CRAN
    (#71)

                       Changes in version 0.1-14                        

This version was submitted to CRAN prematurely and ultimately was not
released.

                 Changes in version 0.1-13 (2016-01-18)                 

  - With xBalance(), you can now specify strata "foo" and "bar" by
    including "+ strata(foo) + strata(bar)" in the fmla argument,
    without need to give a separate strata argument (eg
    strata=list(foo=~foo, bar=~bar)).

                 Changes in version 0.1-12 (2014-07-24)                 

  - Switched to base graphics instead of the lattice package for balance
    plots.
  - Option to make plots on absolute, instead of signed, values.
  - Added the ability to include tooltips to balance plots when using
    the RSVGTipsDevice package.
  - Added a balanceplot() function to handle plotting matrices, not just
    xbal objects.
  - Balance plots can be grouped into related variables. By default
    factors are automatically grouped for xbal objects.
  - Some performance improvements when certain results are not
    requested.
  - post.alignment.transform argument to xBalance() allows modifying the
    data after per-stratum centering.
  - subset method for xbal objects.

                 Changes in version 0.1-11 (2011-03-05)                 

NEW FEATURES

  - the null SD of the difference in adjusted means is now reportable as
    "adj.means.diffs.sd"
  - report="all" provides all relevant statistics
  - Entering args(xBalance) is now useful as a reminder of report=
    options.

DEPRECATED & DEFUNCT

  - The default imputation method for missing data is the median.
    Before 0.1-9 it was the mean. To use the mean, use
    impfn=mean.default.
  - Passing strata=NULL to xBalance() is depracated, as it can be easy
    to do inadvertently, with a misspelling of a non-null intended
    argument. For no stratification, use list(unstrat=NULL), as is now
    the default.

BUG FIXES

  - display, align, etc arguments to xtable.xbal() have been enabled.
  - In xBalance(), when specifying a stratification using a formula with
    several variables, as in ~x+y, the stratification you get is now
    interaction(x,y) rather than just y.