[BlindRUG] [Good tTip]: More Accessible R Plot Device

[JooYoung Seo]

Hello,

I am writing this to share one of my tips with the list.

For many reasons, I have replaced the default plot with `httpgd` which
is rendered as an accessible SVG in your default web browser [fully
tested with console-based environments, Emacs, VSCode].

# 1. Install httpgd.
if(!require(httpgd)) {
  install.packages("httpgd")
}
# 2. Open your .Rprofile

if(!require(usethis)) {
  install.packages("usethis")

usethis::edit_r_profile()

# 3. Add the following line at the end of your .Rprofile and save it.
options(device = function(...) {httpgd::hgd(silent = TRUE);
httpgd::hgd_browse()})

# 4. Restart your R.

# 5. Test whether the following is plotted in your browser in an SVG form.

hist(airquality$Ozone, col = "blue")

boxplot(cars$speed, col = "lightgreen")

# Keyboard shortcuts.
## The following includes some keystrokes you can use in the httpgd
device in your browser.
## Screen reader users have to turn off virtual cursor (AKA, browse
mode / QuickNav).

* Navigate plot history: left-/right-arrows

* Zoom in and out: + / -

* Reset zoom level: 0

* Jump to the newest plot: N

* Delete plot: del / D

* Clear all plots: alt+D

* Download plot as SVG: S

* Download plot as PNG: P

* Copy plot to clipboard (as PNG): C

* Toggle plot history (sidebar): H

Hope this helps.

Best,

JooYoung


-- 
--------------------
  JooYoung Seo, Ph.D.
  RStudio's Trusted Data-Science Instructor
  Learning, Design, and Technology
  Learning and Performance Systems
  The Pennsylvania State University
  Site: https://jooyoungseo.com/
  Phone: +1 (814) 777-5825
  E-mail: jzs323 at psu.edu