prepare for release

.Rbuildignore

@@ -16,3 +16,4 @@
 ^CRAN-RELEASE$
 ^\.github$
 ^revdep$
+^venv$

README.md

@@ -47,12 +47,12 @@ chart
 
 Some things to keep in mind:
 
--   Where you see a `.` in the Python examples, use a `$` instead.
+- Where you see a `.` in the Python examples, use a `$` instead.
 
--   In your data, columns that contain dots can be wrapped in square
-    brackets in Altair specifications, e.g. `[Sepal.Width]`, to keep
-    Altair from throwing an error. Alternatively, you can use a
-    double-backslash, e.g. `Sepal\\.Width`.
+- In your data, columns that contain dots can be wrapped in square
+  brackets in Altair specifications, e.g. `[Sepal.Width]`, to keep
+  Altair from throwing an error. Alternatively, you can use a
+  double-backslash, e.g. `Sepal\\.Width`.
 
 These and other “gotchas” are compiled along with workarounds in an
 article: [Field Guide to Python
@@ -136,72 +136,69 @@ installed.
 The documentation for this package includes some
 [articles](https://vegawidget.github.io/altair/articles/index.html):
 
--   [Getting
-    Started](https://vegawidget.github.io/altair/articles/altair.html):
-    a walkthrough to get a first chart to work
+- [Getting
+  Started](https://vegawidget.github.io/altair/articles/altair.html): a
+  walkthrough to get a first chart to work
 
--   [Installation](https://vegawidget.github.io/altair/articles/installation.html):
-    some more-detailed instructions
+- [Installation](https://vegawidget.github.io/altair/articles/installation.html):
+  some more-detailed instructions
 
 Gallery:
 
--   An adaptation to R of the [Altair Example
-    Gallery](https://altair-viz.github.io/gallery/), to demonstrate (not
-    least to ourselves) that we are not missing any of the
-    expressiveness of the Python API. You may be interested in the
-    [Interactive
-    Charts](https://vegawidget.github.io/altair/articles/example-gallery-08-interactive-charts.html)
-    examples.
+- An adaptation to R of the [Altair Example
+  Gallery](https://altair-viz.github.io/gallery/), to demonstrate (not
+  least to ourselves) that we are not missing any of the expressiveness
+  of the Python API. You may be interested in the [Interactive
+  Charts](https://vegawidget.github.io/altair/articles/example-gallery-08-interactive-charts.html)
+  examples.
 
 Examples:
 
--   [Tooltips](https://vegawidget.github.io/altair/articles/tooltips.html):
-    shows how Vega-Lite implements tooltips as an encoding within a
-    chart, with formatting options
+- [Tooltips](https://vegawidget.github.io/altair/articles/tooltips.html):
+  shows how Vega-Lite implements tooltips as an encoding within a chart,
+  with formatting options
 
--   [Vega
-    Datasets](https://vegawidget.github.io/altair/articles/vega-datasets.html):
-    work with [Vega
-    datasets](https://github.com/altair-viz/vega_datasets) using
-    `import_vega_data()`
+- [Vega
+  Datasets](https://vegawidget.github.io/altair/articles/vega-datasets.html):
+  work with [Vega datasets](https://github.com/altair-viz/vega_datasets)
+  using `import_vega_data()`
 
--   [View
-    Composition](https://vegawidget.github.io/altair/articles/view-composition.html):
-    how to facet, add layers to, repeat, and concatenate charts
+- [View
+  Composition](https://vegawidget.github.io/altair/articles/view-composition.html):
+  how to facet, add layers to, repeat, and concatenate charts
 
--   [Interactive
-    Examples](https://vegawidget.github.io/altair/articles/interactive.html):
-    a set of examples that work towards linked-brushing of two
-    scatterplots
+- [Interactive
+  Examples](https://vegawidget.github.io/altair/articles/interactive.html):
+  a set of examples that work towards linked-brushing of two
+  scatterplots
 
 Field Guides:
 
--   [Field Guide to Python
-    Issues](https://vegawidget.github.io/altair/articles/field-guide-python.html):
-    “gotchas” and their workarounds
+- [Field Guide to Python
+  Issues](https://vegawidget.github.io/altair/articles/field-guide-python.html):
+  “gotchas” and their workarounds
 
--   [Field Guide to Rendering
-    Charts](https://vegawidget.github.io/altair/articles/field-guide-rendering.html):
-    specify options to render charts as HTML
+- [Field Guide to Rendering
+  Charts](https://vegawidget.github.io/altair/articles/field-guide-rendering.html):
+  specify options to render charts as HTML
 
 ## Acknowledgements
 
 This package rests on these foundations:
 
--   [Altair](https://altair-viz.github.io): Python interface to
-    Vega-Lite
+- [Altair](https://altair-viz.github.io): Python interface to Vega-Lite
 
--   [reticulate](https://rstudio.github.io/reticulate/): R framework to
-    work with Python
+- [reticulate](https://rstudio.github.io/reticulate/): R framework to
+  work with Python
 
--   [Vega-Lite](https://vega.github.io/vega-lite/): a grammar of
-    interactive graphics
+- [Vega-Lite](https://vega.github.io/vega-lite/): a grammar of
+  interactive graphics
 
--   [vegawidget](https://vegawidget.github.io/vegawidget/): R package to
-    render Vega(-Lite) visualizations
+- [vegawidget](https://vegawidget.github.io/vegawidget/): R package to
+  render Vega(-Lite) visualizations
 
--   [htmlwidgets](https://www.htmlwidgets.org/): R framework to work
-    with JavaScript visualizations
+- [htmlwidgets](https://www.htmlwidgets.org/): R framework to work with
+  JavaScript visualizations
 
 As well, a particular debt is owed to the folks behind the
 [vegalite](https://github.com/hrbrmstr/vegalite) package, as it provided
@@ -210,13 +207,13 @@ a lot of the inspiration for these efforts.
 This project is a collaborative effort. In addition to the principal
 authors:
 
--   [Alicia Schep](https://github.com/AliciaSchep) has contributed the
-    concatenation functions, as well as sorted out many of the Python,
-    JavaScript, and package-API issues.
+- [Alicia Schep](https://github.com/AliciaSchep) has contributed the
+  concatenation functions, as well as sorted out many of the Python,
+  JavaScript, and package-API issues.
 
--   [Heike Hofmann](https://github.com/heike) has been an invaluable
-    advisor, providing incisive feedback, and insight into the
-    fundamentals of interactive graphics.
+- [Heike Hofmann](https://github.com/heike) has been an invaluable
+  advisor, providing incisive feedback, and insight into the
+  fundamentals of interactive graphics.
 
 ## Contributing
 

cran-comments.md

@@ -1,6 +1,8 @@
 ## R CMD check results
 
-0 errors | 0 warnings  | 0 notes
+0 errors | 0 warnings  | 1 notes
+
+- Changing maintainer's email address.
 
 ## revdepcheck results
 

revdep/README.md

@@ -1,29 +1,45 @@
 # Platform
 
-|field    |value                        |
-|:--------|:----------------------------|
-|version  |R version 4.1.2 (2021-11-01) |
-|os       |macOS Monterey 12.1          |
-|system   |x86_64, darwin17.0           |
-|ui       |RStudio                      |
-|language |(EN)                         |
-|collate  |en_US.UTF-8                  |
-|ctype    |en_US.UTF-8                  |
-|tz       |America/Chicago              |
-|date     |2022-02-14                   |
+|field    |value                                                                                       |
+|:--------|:-------------------------------------------------------------------------------------------|
+|version  |R version 4.2.2 (2022-10-31)                                                                |
+|os       |macOS Ventura 13.2.1                                                                        |
+|system   |aarch64, darwin20                                                                           |
+|ui       |RStudio                                                                                     |
+|language |(EN)                                                                                        |
+|collate  |en_US.UTF-8                                                                                 |
+|ctype    |en_US.UTF-8                                                                                 |
+|tz       |America/Chicago                                                                             |
+|date     |2023-03-12                                                                                  |
+|rstudio  |2022.12.0+353 Elsbeth Geranium (desktop)                                                    |
+|pandoc   |2.19.2 @ /Applications/RStudio.app/Contents/Resources/app/quarto/bin/tools/ (via rmarkdown) |
 
 # Dependencies
 
-|package  |old   |new        |Δ  |
-|:--------|:-----|:----------|:--|
-|altair   |4.1.1 |4.2.0.9004 |*  |
-|cli      |NA    |3.2.0      |*  |
-|crayon   |NA    |1.5.0      |*  |
-|magrittr |NA    |2.0.2      |*  |
-|pillar   |NA    |1.7.0      |*  |
-|repr     |NA    |1.1.4      |*  |
-|rlang    |NA    |1.0.1      |*  |
-|yaml     |NA    |2.2.2      |*  |
+|package     |old   |new        |Δ  |
+|:-----------|:-----|:----------|:--|
+|altair      |4.2.1 |4.2.1.9002 |*  |
+|cachem      |NA    |1.0.7      |*  |
+|cli         |NA    |3.6.0      |*  |
+|evaluate    |NA    |0.20       |*  |
+|fansi       |NA    |1.0.4      |*  |
+|fastmap     |NA    |1.1.1      |*  |
+|fs          |NA    |1.6.1      |*  |
+|htmlwidgets |NA    |1.6.1      |*  |
+|knitr       |NA    |1.42       |*  |
+|png         |NA    |0.1-8      |*  |
+|Rcpp        |NA    |1.0.10     |*  |
+|RcppTOML    |NA    |0.2.2      |*  |
+|repr        |1.1.6 |1.1.6      |   |
+|reticulate  |NA    |1.25-9010  |*  |
+|rmarkdown   |NA    |2.20       |*  |
+|sass        |NA    |0.4.5      |*  |
+|stringi     |NA    |1.7.12     |*  |
+|tinytex     |NA    |0.44       |*  |
+|utf8        |NA    |1.2.3      |*  |
+|vctrs       |NA    |0.5.2      |*  |
+|xfun        |NA    |0.37       |*  |
+|yaml        |NA    |2.3.7      |*  |
 
 # Revdeps