• Duplicated values of positional attributes are no longer removed (bug was introduced in v4.0.0).

• Upgraded to plotly.js v1.14.2 -- https://github.com/plotly/plotly.js/releases/tag/v1.14.2

• Formulas (instead of plain expressions) are now required when using variable mappings. For example, plot_ly(mtcars, x = wt, y = mpg, color = vs) should now be plot_ly(mtcars, x = ~wt, y = ~mpg, color = ~vs). This is a major breaking change, but it is necessary to ensure that evaluation is correct in all contexts (as a result, evaluate argument is now deprecated as it is no longer needed). It also has the benefit of being easier to program with (i.e., writing your own custom functions that wrap plot_ly()) since it preserves referential transparency. For more details, see the lazyeval vignette
• The data structure used to represent plotly objects is now an htmlwidget object (instead of a data frame with a special attribute tracking visual mappings). As a result, the last_plot()/as.widget() functions have been deprecated, and serialization/memory leak problems are no longer an issue. This change also implies that arbitrary data manipulation functions can no longer be intermingled inside a plot pipeline, but plotly methods for dplyr's data manipulation verbs are now provided (see ?plotly_data for examples).
• The group variable mapping no longer create multiple traces, but instead defines "gaps" within a trace (fixes #418, #381, #577). Groupings should be declared via the new group_by() function (see help(plotly_data) for examples) instead of the group argument (which is now deprecated).
• plot_ly() now initializes a plotly object (i.e., won't add a scatter trace by default), meaning that something like plot_ly(x = 1:10, y = 1:10) %>% add_trace(y = 10:1) creates one trace, instead of two. That being said, if you manually specify a trace type in plot_ly(), it will add a layer with that trace type (e.g. plot_ly(x = 1:10, y = 1:10, type = "scatter") %>% add_trace(y = 10:1) draws two scatter traces). If no trace type is provided, a sensible type is inferred from the supplied data, and automatically added (i.e., plot_ly(x = rnorm(100)) now creates a histogram).
• The inherit argument is deprecated. Any arguments/attributes specified in plot_ly() will automatically be passed along to additional traces added via add_trace() (or any of it's add_*() siblings).
• Aesthetic scaling (e.g., color, symbol, size) is applied at the plot-level, instead of the trace level.
• Size is no longer automatically included in hovertext (closes #549).

• Added linetype/linetypes arguments for mapping discrete variables to line types (works very much like the symbol/symbols).
• Scaling for aesthetics can be avoided via I() (closes #428). This is mainly useful for changing default appearance (e.g. plot_ly(x = 1:10, y = 1:10, color = I("red"))).
• Symbols and linetypes now recognize pch and lty values (e.g. plot_ly(x = 1:25, y = 1:25, symbol = I(0:24)))
• A new alpha argument controls the alpha transparency of color (e.g. plot_ly(x = 1:10, y = 1:10, color = I("red"), alpha = 0.1)).
• Added a sizes argument for controlling the range of marker size scaling.
• New add_polygons()/add_ribbons()/add_area()/add_segments()/add_lines()/add_markers()/add_paths()/add_text() functions provide a shorthand for common special cases of add_trace().
• New toWebGL() function for easy conversion from SVG to WebGL.
• New export() function makes it easy to save plots as png/jpeg/pdf (fixes #311).
• Misspecified trace/layout attributes produce a warning.
• New plotly_data() function for returning/inspecting data frame(s) associated with a plotly object.
• New plotly_json() function for inspecting the data sent to plotly.js (as an R list or JSON).
• layout() is now a generic function and uses method dispatch to avoid conflicts with graphics:layout() (fixes #464).

• Upgraded to plotly.js v1.14.1 -- https://github.com/plotly/plotly.js/releases/tag/v1.14.1

3.6.5 -- 10 June 2016

IMPROVEMENT:

Multiple rows of facet strips will now be separated by
(i.e., line breaks) instead of ,. See #593.

3.6.4 -- 31 May 2016

BUG FIX:

embed_notebook() will no longer use a '.embed' extension in the iframe src attribute. See #613.

3.6.3 -- 24 May 2016

CHANGES:

Provided a better way of reexporting magrittr::%>%. See #597.

3.6.2 -- 24 May 2016

CHANGES:

Removed unnecessary plyr dependency.

3.6.1 -- 23 May 2016

BUG FIX:

Add a default method for plotly_build. Fixes #592.

3.6.0 -- 16 May 2016

NEW FEATURES & CHANGES:

• Many improvements to the subplot() function:

  • ggplot2 objects are now officially supported (#520).
  • Several new arguments allow one to synchronize x/y axes (#298), height/width (#376), hide/show x/y axis titles.
  • A list of plots can now be passed to the first argument.
  • A new vignette with examples and more explanation can be accessed via vignette("subplot").

• ggplotly() is now a generic function with a method for ggmatrix objects.

• plotly_build() is now a generic function.

BUG FIX:

Column facet strips will no longer be drawn when there is only one column.

3.5.7 -- 13 May 2016

CHANGES:

Better defaults for defaultWidth/defaultHeight in the htmlwidget's sizing policy.

BUG FIX:

Pass knitr options to the named argument options. Fixes #582.

3.5.6 -- 12 May 2016

BUG FIX:

Use .embed suffix in iframe src attribute. Fixes #581.

3.5.5 -- 5 May 2016

CHANGES:

ggplotly() will now use plotly's layout.axisid.title (instead of layout.annotations) for axis titles on non-faceted plots. This will make for a better title placement experience (see #510).

BUG FIX:

Space for interior facet_wrap() strips are now accounted for.

3.5.4 -- 5 May 2016

BUG FIX:

gg2list() now returns an object of class "plotly_built" instead of "plotly" to ensure a sensible print method is invoked.

3.5.3 -- 3 May 2016

CHANGES:

Upgrade to plotlyjs v1.10.1 -- https://github.com/plotly/plotly.js/releases/tag/v1.10.1

3.5.2 -- 2 May 2016

BUG FIX:

Added missing key properties in ggplotly() converter so selections can be accessible via event_data().

3.5.1 -- 26 Apr 2016

CHANGES:

Upgrade to plotlyjs v1.10.0 -- https://github.com/plotly/plotly.js/releases/tag/v1.10.0

Distinguish between "built" (plotly_built) and "non-built" (plotly_hash) plotly objects. See #562

3.5.0 -- 19 Apr 2016

NEW FEATURES:

The toRGB() function will now respect alpha channels in hex color codes and can recursively apply alpha.

CHANGES:

The toRGB() function will always output color codes with an alpha channel (e.g. toRGB('black') is now 'rgba(0,0,0,1)' instead of 'rgb(0,0,0)')

3.4.15 -- 18 Apr 2016

BUGFIX:

The alpha in geom_smooth was incorrectly inheriting from other layers. See #551.

3.4.14 -- 15 Apr 2016

CHANGES:

Upgrade to plotlyjs v1.9.0 -- https://github.com/plotly/plotly.js/releases/tag/v1.9.0

3.4.13 -- 6 Apr 2016

BUGFIX:

In some cases, marker color was inheriting from the marker line color when it shouldn't have. See ##537.

3.4.12 -- 5 Apr 2016

CHANGES:

Upgrade to plotlyjs v1.8.0 -- https://github.com/plotly/plotly.js/releases/tag/v1.8.0

3.4.11 -- 2 Apr 2016

BUGFIX:

Fix bug when altering modebar button defaults

3.4.10 -- 1 Apr 2016

BUGFIX:

Fix a geom_errorbar bug introduced in 3.4.9. See #513.

3.4.9 -- 25 Mar 2016

BUGFIX:

Upgrade to plotlyjs 1.7.0. Fixes #513

3.4.8 -- 23 Mar 2016

BUGFIX:

• Safeguard against null fields in selections. See #530.

3.4.7 -- 19 Mar 2016

BUGFIX:

• Added custom CSS which allows plotly to work nicely in ioslides.

3.4.6 -- 17 Mar 2016

NEW FEATURES:

The 'plotly_relayout' event is now accessible via the event_data() function.

Fixed #514.

3.4.5 -- 17 Mar 2016

BUGFIX:

Fixed #514.

3.4.4 -- 17 Mar 2016

BUGFIX:

Show discrete positional values in tooltip (see #515); better GeomTile conversion; pass plot object into layers2traces.

3.4.3 -- 14 Mar 2016

BUGFIX:

Custom facet labeller functions will now translate correctly. See #507.

3.4.2 -- 14 Mar 2016

BUGFIX:

Automatic resizing will now occur only when layout.autosize is true (the default). See #403.

3.4.1 -- 13 Mar 2016

BUGFIX:

Legend titles are now supported.

3.4.0 -- 12 Mar 2016

NEW FEATURES:

• geom_map() and geom_hex() are now supported.

CHANGES:

• The default value of the fileopt argument was changed from "new" to "overwrite".

BUGFIX:

• Made a number of bugfixes/improvements to hoverinfo & conversion of geom_tile()/geom_point().

3.3.1 -- 10 Mar 2016

CHANGES:

• Changed the mapping argument name to tooltip (which seems like a better name).

BUGFIX:

• Redundant legend entries are no longer shown.

3.2.1 -- 10 Mar 2016

BUGFIX:

• Proper formatting for date tooltips.

3.2.0 -- 10 Mar 2016

CHANGES:

• Legend titles no longer appear in legend entries.
• Tooltips now reflect aesthetic mappings. This makes it easier to decode data values from a given visual marking.

NEW FEATURES:

• geom_violin() is now supported.
• ggplotly() gains a mapping argument to control the set of aesthetics to appears in the tooltip as well as their order.

3.1.0 -- 8 Mar 2016

CHANGES:

• The "hidden" sharing option in plotly_POST() was renamed to "secret".
• The default value in the scale argument in plotly_IMAGE() is now 1.

3.0.0 -- 8 Mar 2016

NEW FEATURES:

• ggplotly() is now about 20x faster (it avoids calling ggplot_build() 20+ times). In some cases, it might be even faster since a lot of other redundant computation is avoided.

CHANGES:

• Instead of (trying to) translate both major and minor grid lines, we now translate only major grid lines. This generally produces a result closer to the actual ggplot2 result since ggplot2 doesn't draw ticks on minor grid lines.

BUG FIXES:

• ggplotly() now supports most of scale_()/theme()/guides(). As a result, this fixes a lot of issues (#482, #481, #479, #476, #473, #460, #456, #454, #453, #447, #443, #434, #422, #421, #399, #379, #378, #357, #318, #316, #242, #232, #211, #203, #185, #184, #161). In order to support all of scale_x_() an scale_y_*(), we always use linear axis types, and supply ticktext/tickvals to plotly.js. This has some unfortunate consequences on hoverformatting, which may be addressed in future releases of plotly.js -- plotly/plotly.js#320

2.5.0 -- 1 Mar 2016

NEW FEATURES

• New event_data() function provides easy access to plotly events in shiny. For an example, see https://github.com/ropensci/plotly/tree/master/inst/examples/plotlyEvents

• plot_ly() and ggplotly() gain a source argument to differentiate between plotly events in shiny apps with multiple plots. ggplotly() also gains width and height arguments.

CHANGES

The arguments filename, fileopt, world_readable in ggplotly() were removed as they should be provided to plotly_POST() instead.

2.4.4 -- 13 Feb 2016

as.widget() now returns htmlwidget objects untouched. See #449.

2.4.3 -- 11 Feb 2016

Ensure that we always return HTTPS links. Fixes #455

2.4.2 -- 9 Feb 2016

Fix for on-premise domain configuration.

2.4.1 -- 2 Feb 2016

Attach base_url in as.widget() so it works in multiple contexts

2.4.0 -- 1 Feb 2016

• Pass plot configuration using ... to avoid conflicts in defaults/documentation
• Upgrade to plotly.js 1.5.1

2.3.4 -- 1 Feb 2016

Added a plotly_api_domain environment variable for configuring the API domain. Fixes #441

2.3.3 -- 27 Jan 2016

Bump axis number for each trace matching a panel number. fixes #318

2.3.2 -- 25 Jan 2016

More accurate list of data_array properties. Fixes #415

2.3.1 -- 25 Jan 2016

More accurate conversion of path width. Fixes #373.

2.3.0 -- 19 Jan 2016

Add sharing argument and deprecate world_readable. Fixes #332

2.2.4 -- 18 Jan 2016

Fix for error in embed_notebook(). See #409.

2.2.3 -- 18 Jan 2016

Fix for geom_vline(). See #402.

2.2.2 -- 18 Jan 2016

Fix bar orientation when we detect geom_bar() + coord_flip() in ggplotly(). Fixes #390.

2.2.1 -- 18 Jan 2016

Search for axis title in scene object. fixes #393.

2.2.0 -- 13 Jan 2016

The default for layout.hovermode is now 'closest' for non-line scatter traces

2.1.3 -- 12 Jan 2016

Fix size and alpha translation for geom_point. Fixes #386

2.1.2 -- 11 Jan 2016

Upgraded to plotlyjs 1.4.1. For a list of changes, see https://github.com/plotly/plotly.js/releases/tag/v1.4.1

2.1.1 -- 11 Jan 2016

Upgraded to plotlyjs 1.4. For a list of changes, see https://github.com/plotly/plotly.js/releases/tag/v1.4.0

2.1.0 -- 29 Dec 2015

plot_ly() now defaults to inherit=FALSE and plotly_build() is now idempotent. Fixes #280 and #277. See #368 for details.

2.0.19 -- 23 Dec 2015

Added as.widget() function for conveniency in converting plotly object to htmlwidget objects. See #294.

2.0.18 -- 22 Dec 2015

Fix #365

2.0.17 -- 22 Dec 2015

Fix #358

2.0.16 -- 18 Dec 2015

Require ggplot2 2.0.0 or higher. For details, see #269.

2.0.15 -- 13 Dec 2015

Fix #346

2.0.14 -- 13 Dec 2015

Fix #212

2.0.13 -- 12 Dec 2015

Fix #286

2.0.12 -- 11 Dec 2015

Fix #221

2.0.11 -- 11 Dec 2015

Fix #250

2.0.10 -- 10 Dec 2015

Fix #225

2.0.9 -- 10 Dec 2015

Fix #333

2.0.8 -- 10 Dec 2015

Fix a bug with geom_segment (see #321 & #228)

2.0.7 -- 10 Dec 2015

Fix #233

2.0.6 -- 2 Dec 2015

Upgrade to plotlyjs 1.1.1. Fixes #319.

2.0.5 -- 1 Dec 2015

Fix for legend names. See #236.

2.0.4 -- 28 Nov 2015

Fix #313.

2.0.3 -- 18 Nov 2015

Fixed bug causing knitr options to be ignored. Also added VignetteBuilder to DESCRIPTION to vignette is available.

2.0.2 -- 17 Nov 2015

Using plotly_build() on a ggplot object should always return a plotly object

2.0.1 -- 17 Nov 2015

Better printing of server figures. Documentation and other fixes for initial CRAN release!

2.0.0 -- 2 Nov 2015

Added a dependency on htmlwidgets and 'offline' plots are now the default. If you want to create a figure on a plotly server, you need to use plotly_POST(). Also added a config() function to control the default appearance of the interactive plot

1.0.10 -- 3 Nov 2015

Fixed #292.

1.0.9 -- 28 Sep 2015

Fixed filename, fileopt arguments in plot_ly. Specifying the same filename will now overwrite the plot if it exists.

1.0.8 -- 14 Sep 2015

Added the plotly_IMAGES() function which interfaces to the images endpoint https://api.plot.ly/v2/#images

Details -> plotly#279

1.0.7 -- 26 Aug 2015

See plotly#275

1.0.6 -- 25 Aug 2015

Fix a bug with subplot domain calculations (see plotly#274)

1.0.5 -- 20 Aug 2015

Fix issue converting plotly offline markdown documents to HTML when using markdown::markdownToHTML

1.0.4 -- 14 Aug 2015

Bug fix for subplot. See #265

1.0.3 -- 7 Aug 2015

Improved legend positioning. See #241

1.0.2 -- 2 Aug 2015

• last_plot() will now look for the last plotly object; if not found, it will try to find the last ggplot object.
• Officially added the filename, fileopt, and world_readable arguments to plot_ly() and ggplotly().
• If plotly offline is not available, the shiny.launch.browser option is changed to open a web brower. See #245.
• Various namespace/documentation improvements for R CMD check.

1.0.1 -- 2 Aug 2015

Removed the stream() function as it wasn't ready to be included.

1.0.0 -- 31 July 2015

A major reworking of package internals which includes a few backwards incompatible changes.

Major changes include:

(1) New high-level grammar for expressing Plotly graphs from R (see the plot_ly(), add_trace(), layout(), and style() functions). (2) New print methods which make it easier to create, modify, and embed Plotly graphs. (3) Added a subplot() function for putting several graphs on a single page. (4) Added the renderPlotly() and plotlyOutput() functions for embedding plotly graphs in shiny applications. (5) Added offline() function for creating standalone HTML pages via Plotly Offline (see http://purchasing.plot.ly/)

For more details, see the new vignettes with browseVignettes(package = "plotly") and/or the pull request -> plotly#226

0.6.3 -- 2 June 2015

Add new tests inspired by the R Cookbook distributions #214

0.6.2 -- 19 May 2015

In geom_bar(stat = "identity"), sum y values if multiple for a given x.

0.6.1 -- 5 May 2015

Add test-cookbook-lines.R and fix bugs that showed up in those tests.

0.6 -- 4 May 2015

Let gg2list() return a figure object (backwards incompatible change).

0.5.29 -- 16 April 2015

geom_density() as filled area chart #202

0.5.28 -- 15 April 2015

Let ggplot handle histogram binning. Fix #198

0.5.27 -- 19 Mar 2015

Reimplement geom_ribbon as a basic polygon. Fix #191. Fix #192.

0.5.26 -- 18 Mar 2015

Implemented geom_rect #178

0.5.25 -- 10 March 2015

Implemented geom_smooth() #183

0.5.24 -- 10 March 2015

Implemented facet_wrap(scales="free") #167

0.5.23 -- 10 March 2015.

geom_ribbon() now respects alpha transparency

0.5.22 -- 2 March 2015.

Fixes for ylim() #171.

0.5.21 -- 23 February 2015.

Fixes for error bars and tick marks.

0.5.20 -- 9 February 2015.

Add alpha transparency to fill conversion. Let geom_area support colour and fill aesthetics.

0.5.19 -- 23 January 2015.

Support class conversion such as as.Date() within ggplot code.

0.5.18 -- 22 January 2015.

Return proper filepath when filename contains directories.

0.5.17 -- 30 December 2014.

Support date-time binning in histograms.

0.5.16 -- 29 December 2014.

Support colour aesthetic in geom_text().

0.5.15 -- 19 December 2014.

Use proper RCurlOptions in get_figure() method.

0.5.14 -- 1 December 2014.

Make layers geom_line + geom_point only one trace in Plotly.

0.5.13 -- 27 November 2014.

Rename translation file and server endpoint parameter to be hip.

0.5.12 -- 12 November 2014.

Improve legend title position.

0.5.11 -- 11 November 2014.

Show legend title.

0.5.10 -- 7 November 2014.

Improve showlegend and fix legend’s x position.

0.5.9 -- 3 November 2014.

Default colours for geom_polygon().

0.5.8 -- 30 October 2014.

Support hline over a factor x range. Default colours for geom_boxplot().

0.5.7 -- 29 October 2014.

Default colours for geom_area() and geom_ribbon().

0.5.6 -- 28 October 2014.

Convert line size faithfully.

0.5.5 -- 24 October 2014.

Support category histograms (with factors).

0.5.4 -- 22 October 2014.

Support conversion of geom_vline().

0.5.3 -- 21 October 2014.

Support conversion of geom_bar() with position_dodge().

0.5.2 -- 18 October 2014.

Support aesthetic shape in geom_path() and, hence, geom_line() (conversion).

0.5.1 -- 15 October 2014.

Do not show zero lines by default (as in ggplot2 plots).

0.5.0 -- 15 October 2014.

From now on, version numbers are meaningful again... Many changes meanwhile, especially support for more geoms.

0.4 -- 7 April 2014.

Re-write geom to trace conversion code.

0.3.8 -- 21 March 2014.

ggplotly takes the last_plot() by default.

Support for ggplotly layout elements title, tickcolor, gridcolor, showlegend, plot_bgcolor, paper_bgcolor, tickangle, axis titles, plot border colors.

0.3.7 -- 14 March 2014.

For ggplotly:

• if on the command line, open a web browser (as before).

• if in knitr/Rmd in a chunk with plotly=TRUE, embed the plot.

0.3.6 -- 10 March 2014.

Merge ggplotly code.

0.3.5