Changes in version 0.7.0                        

  - revised twoway functions to use the names of variables for row/col
  - fixed documentation errors/warnings
  - include more graphs in examples
  - using |> pipes in examples: now depends on R >= 4.1

                        Changes in version 0.6.4                        

  - added VermontPop data
  - added Rubber data

                 Changes in version 0.6.3 (2020-06-26)                  

  - revised plot.twoway() to use and default to na.rm=FALSE
  - revised plot.twoway.fit() to use and default to na.rm=FALSE
  - revised meanfit() to use and default to na.rm=FALSE
  - revised twoway.default() to pass ... (hence na.rm) to meanfit
  - added demo/ directory
  - added demo/example-na.r to illustrate use of na.rm
  - added demo/00Index
  - Turn on travis CI

                 Changes in version 0.6.2 (2018-08-24)                  

  - revised twoway.default() to calculate various other quantities and
    include these in the "twoway" object [RMH]
  - revised plot.twoway() with separate functions for the "fit" and
    "diagnose" plots. [RMH]
  - added ladder_power() to find the nearest ladder of powers value
  - enhanced arguments for diagnostic plot: jitter, smooth, pch
  - added residuals.twoway() and fitted.twoway()
  - added warning, if anova.twoway() is invoked when the model is fit
    using row/col medians.
  - prepare for initial CRAN release.

                        Changes in version 0.6.1                        

  - added as.twoway() to give an initial display of a two-way table as a
    "twoway" object [RMH]
  - print.twoway() now displays the names(dimnames(x)) and the
    responseName when available [RMH].

                        Changes in version 0.6.0                        

  - Change some built-in data sets to matrices with proper
    names(dimnames); in matrix form, a "responseName" attribute is now
    partially supported in some functions.
  - Added to_long() and to_wide() to facilitate working either way [RMH]
  - twoway.formula() now uses to_wide() rather than tidyr constructs,
    resulting in a big speed-up
  - twoway.default() now calculates the slope for the diagnostic plot,
    including it in the object [Suggestion: RMH]
  - twoway.default() now prefers matrix inputs, allowing better labels
    for row/col/response variables, but not yet implemented throughout
    the various methods.

                        Changes in version 0.5.0                        

  - Added a twoway.formula() method

                        Changes in version 0.4.1                        

  - Modified the twoway plot method per suggestions of RMH (better axis
    labels)
  - plot.twoway(..., which="diagnose") gets an annotate= argument
  - print.twoway() gets a zapsmall= argument per RMH
  - Added insectCounts data
  - Revised anova.twoway() to be less redundant

                        Changes in version 0.4.0                        

  - Added an initial anova.twoway() method
  - Update README

                        Changes in version 0.3.0                        

  - Added a NEWS.md file to track changes to the package.
  - Added a as.data.frame method for twoway objects. This simpilifies
    graphical displays and other computations.
  - print.twoway() gets a border=2 option to print the result in a fancy
    table with horizontal and vertical separators [thx: Richard
    Heiberger]