Changes in version 2.0.1                        

  - Documentation fixes per CRAN request.
  - likert.density.plot has been deprecated.
  - Added likert_anchors dataset and vignette.

                         Changes in version 2.0                         

  - Many fixed to be compatible with the latest version of ggplot2.
  - Added digits parameter to plot for heatmaps.
  - Now check to ensure grouping variable does not have any missing
    values.
  - Print a warning if any variables are not factors.
  - New Shiny app that allows for interactively manipulate Likert
    options.

                        Changes in version 1.3.6                        

  - Fixed a bug where the labels were placed on the wrong side.
  - Now require ggplot2 versions greater than 2.2.0.

                 Changes in version 1.3.5 (2016-12-31)                  

  - Fixed a bug where stacked bars were in the wrong order in grouped
    plots.
  - Plotting options are now passed as a list. The likert.options
    returns the default set of plotting options.

                        Changes in version 1.3.4                        

  - Fixed a bug where the neutral labels would be printed twice when
    there were an odd number of levels and plot.percents = TRUE.
  - Fixed a bug where the results for a grouped analysis with missing
    levels may not be correct in the print function.

                 Changes in version 1.3.3 (2015-12-15)                  

  - Update for ggplot2 version 2.0

                        Changes in version 1.3.2                        

  - Removed all use of the reshape package.
  - Fixes issue 40 where the histogram bars may not match the likert
    bars.

                 Changes in version 1.3.1 (2015-11-03)                  

  - Fix to work with the latest version of the xtable package.

                 Changes in version 1.3.0 (2015-10-23)                  

  - Added ability to group items by factor.
  - Converted all uses of reshape to reshape2.
  - Other fixes to pass R CMD CHECK.

                        Changes in version 1.2.1                        

  - Added colors parameter to plot.likert.bar to define custom colors
    for levels.
  - Fixed bug where an unused factor level would not appear in the
    legend.

                  Changes in version 1.2 (2014-10-17)                   

  - Added initial support for conducting gap analysis. A demo,
    GapAnalysis has also been added.
  - Removed dependency on a non-exported function in ggplot2.
  - Can now create a likert object with a pre-summarized data frame.
  - New Shiny app to demonstrate many of the features in the likert
    package. The shinyLikert() function will start the app.
  - Fixed bug where text.color parameter was not being used.
  - Fixed bug 16.
  - Fixed bug where automatic conversion to factors would not work if
    there were missing levels in an item.
  - Added text labels to the histogram (if include.histogram=TRUE) for
    the n.
  - Fixed a bug where plot.likert(..., include.histogram=TRUE) would not
    work with a group and only one item (i.e. one column).
  - Updates for newer version of R and Roxygen.

                  Changes in version 1.1 (2013-09-25)                   

Released September 25, 2013.

  - New density plot type plot(l, type='density').
  - xtable function to create LaTeX and HTML tables.
  - Added several parameters related to centering bar plots. Can now
    include the center level and split across zero, or specify which
    level, or between which levels, centering occurs.
  - Plot a histogram of responses (n) alongside the barplot.
  - Summary function now includes neutral column. Values will be NA if
    no level is the center.
  - If there is a neutral category in the bar plot it will be labeled
    with its percentage.
  - Added parameter to wrap text in plots for long item names.
  - Changed the default colors.
  - Added parameter to change legend title.
  - Can now plot bar plot panels horizontally.
  - Changed the center=TRUE as the default for bar plots to.
  - Added panel.flip to flip the placement of grouping elements and
    items.
  - Added legend.position parameter.
  - Added panel.strip.color to change the background color for panel
    labels.
  - Added group.order to reorder how groups are plotted. This also works
    for items in non-grouped items.
  - Added parameters to turn off percent labels for low, high, and
    netural separately.
  - Added a check to ensure all factors have the same number of levels.
  - Items (i.e columns) that are not a factor will be converted to a
    factor using as.factor.
  - Added reverse.levels function to reverse code factors. Useful when
    you wish to plot bars in reverse order (left-to-right).
  - Two new demos, RecodeFactors and UnusedLevels show how to deal with
    common data issues before using the likert function.
  - Added plot.percents parameter to label each category.
  - Other bug fixes.