plotROC 2.3.0
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New feature: 
  - calc_auc returns informative value labels for the panels and/or groups (fixes #74)


plotROC 2.2.2
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Bug fixes: 
  - calc_auc when roc is not the first layer (fixes #70)

plotROC 2.2.1
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Bug fixes: 
  - Quosure fixes to be compatible with upcoming ggplot2 release. 
  - Don't plot points in legend when no labels present (fixes #61)

plotROC 2.2.0
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New features:
  - new cutoff.labels parameter to allow user-supplied labels for the cutoffs (thanks @rcorty)
  - new increasing parameter with default value TRUE. This determines whether the probability 
  of a D = 1 increases with increasing M, if FALSE, assumes that the probability increases with 
  decreasing M (for example if M is the p-value from a regression model) 
Bug fixes: 
  - Now shows shape aesthetic in legend if mapped. 

plotROC 2.1.0
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New feature:
  - cutoffs.at argument to geom_roc overrides n.cuts and plots points/labels at user-supplied cutoffs. 

plotROC 2.1.0
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New feature:
  - max.num.points argument to stat_roc (can also pass it to geom_roc()) limits the number of points that get plotted.
    Note this downsamples the curve at the end of the computation, so the benefit of having a lot of data (very 
    precise curve) is still realized. Thanks @rcorty


plotROC 2.0.3
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Bug fixes:
  - Conflict between alpha.line, alpha.point, size.point and the aesthetics alpha and size

plotROC 2.0.2
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Fixes:
  - Export verify_d function
  - Bug fix for logical vectors passed to verify_d

plotROC 2.0.1
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Bug fixes:
  - Style and format of labels/lines fixed, now passed correctly to ggplot functions
  - Reduce run time of examples
  - Tested with dev version of ggplot2


plotROC 2.0.0
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Major changes to the API this release
  - calculate_roc and ggroc are deprecated
  - estimate and display roc curves using geom_roc
  - estimate and display confidence regions using geom_rocci
  - support for faceting and grouping
  - better performance and improved interactivity. 
  
plotROC 1.3.3
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  - Added support to ggroc method for objects as returned by ROCR::performance
  - Bug fix in labeling
  - Update d3
  - option to omit inclusion of d3 code

plotROC 1.3.2
--------------
Added support for new aesthetic options in plot_journal_roc and export_interactive_roc
  + colors
  + legends
  + line type
  + line width
  + axis labels
  + plotmath expressions in labels

Remove need to specify cutoff labels to plot and export. Those functions now read the data directly from the ggroc object. Easier to use this way!

plotROC 1.3.1
-----------
  * fix multi plot with n.cuts = 0 bug

plotROC 1.3
------------
  * Added tests
  * Fixed vignette
  * Allow arbitrary class labels
  * Cleanup after interactive plot creation
  * Citation information

plotROC 1.2
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  * New feature: click on interactive plot to display confidence region

plotROC 1.1
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  * New feature: Support for multiple curves

 plotROC 1.0
----------------
  * Initial release