• Update URLs in documentation. (#164)

  • Update package-documentation to comport with Roxygen updates. (#165)

  • Update actions - note that for Altair 4.2.0, you must use Pandas<=1.5.3 (#163)

  • Update case-study vignette to allow for more than 5000 rows. (#159)

  • Update signatures of repr_text() and repr_vegalite4() to align with signatures of their generics. (#158)

  • Upgrade to Altair 4.0.0

  • Update repr methods to include top-level Altair class. (#127)

  • updates the image-functions from vegawidget
  • upgrades to Altair 2.3.0
  • updates exports from vegawidget
  • adds methods repr_text() and repr_vegalite2() methods for Altair chart objects, allowing them to be rendered natively in Jupyter notebooks using IRKernel (https://irkernel.github.io) (#91, with @flying-sheep).

  • imports vw_rename_datasets() from vegawidget

  • new versioning system: first three version numbers follow supported Altair (Python) version

  • updates to use Altair 2.2.2

  • adds altair_version(), returns list of versions used for Altair, Vega, Vega-Lite, etc.

  • adds as_chart(), to import a vegaspec as an Altair chart

  • removes rendering functions in favor of a separate package, vegawidget - vegawidget functions imported and exported using templating function vegawidget::use_vegawidget().

  • adds requirement to use reticulate (>=) 1.9, to avoid conflict between data-frame variable-names and python methods (#50, @aliciaschep) and to remove the need to use the r_to_py() function for data (#83)

  • updates to use Altair 2.1.0, which offers tooltips (#29, #46, @aliciaschep)

  • adds compiled option to only_actions() to conform with new option in vega-embed (#71)

  • incorporates remaining galleries

  • incorporates first gallery
  • adapts examples gallery from Altair (#24, @haleyjeppson)

  • updates articles and documentation (#32)

  • deprecates vegalite() in favor of vegawidget() (#48)

  • provides methods for knit_print() and print() generics (#8)

  • updates versions of JS libraries: vega 3.3.1, vega-lite 2.4.3, vega-embed 3.9.0 (#33)

  • removes tooltip functions (#45)

  • updates .onLoad() to run check_altair() on loading, and adds error handling (#43, with @aliciaschep)

  • updates travis.yml so that this package installs its supported version of Altair (#44)

  • adds function check_altair() to check installed version against supported version (#42, with @aliciaschep)

  • updates install_altair() (#41)

  • synchronizes with Altair v2.0.x (#36)

  • new function to manage installation of Altair Python package: install_altair() (#1)

  • makes Vega datasets available through import_vega_data() (#25)

  • significant changes to the rendering function vegalite():

    • if the embed argument is NULL, vegalite() sets it to getOption("altair.embed_options") - if that is not defined, the vega-embed defaults are used

    • width and height arguments to vegalite() are used now to specify the total width and height of rendered charts - notes: (1) this is effective only for single-view charts, (2) width and height apply to the chart only, they do not take into account any action-links - if arguments are not set, the size of the chart is determined from the chart specification (#18)

    • vegalite() strips the style attribute from the <div/> for the htmlwidget - this has the effect of letting the rendered Vega-Lite chart determine the size of its container (#16, #18)

  • adds concatenation operators for charts: |, &, + (#22, @aliciaschep)

  • adds function vega_embed(), with friend only_actions(), to support embedding options in vegalite() (#16)

  • updates css for embedding, makes the action-links look much better (#20, @aliciaschep)

  • adds tooltip-capability to vegalite() renderer, with functions vega_tooltip(), add_fields(), and friends: vega_tooltip_encoding() and vega_tooltip_all() (#4, with @aliciaschep)

  • adds a NEWS.md file to track changes to the package

  • achieves minimal functionality