Require

<p>the package to be loaded/installed.</p>

<p>It is easier to run a script if we know the packages will be installed if this additional step is necessary. 
Installation uses the RStudio mirror of CRAN.</p>

Blind users do not have access to the graphical output from R
without printing the content of graphics windows to an embosser of some kind. This
is not as immediate as is required for efficient access to statistical output.
The functions here are created so that blind people can make even better use
of R. This includes the text descriptions of graphs, convenience functions
to replace the functionality offered in many GUI front ends, and experimental
functionality for optimising graphical content to prepare it for embossing as
tactile images.

A. R. Godfrey

BrailleR

Improved Access for Blind Users

A. Jonathan R. Godfrey

Debra Warren

Donal Fitzpatrick

Duncan Murdoch

Greg Snow

Henrik Bengtsson

James Curtis

JooYoung Seo

Marshall Flax

Paul Murrell

Timothy Bilton

Tony Hirst

Tsan-Kuang Lee

Volker Sorge

Yihui Xie

Require function

Load a package by installing it if necessary — Require

Load a package by installing it if necessary

Require: Load a package by installing it if necessary

Description

Usage

Arguments

Value

See Also