[R] Demo files in R packages

[Michael L Friendly]

Before vignettes were established as a way to document a package, there were demos, R files in a `demo/` folder with a `demo/00-Index` file giving their contents.
Used as `demo(package="...")` this gave a window with a list and titles, and `demo("example1", package="...") ran `demo/example1.R` in the console.
It was also a good way to give a pointer to something more extensive than you wanted to include in the examples for a function or dataset.

This idea still works for R packages, but is not available for use in roxygen2 documentation, or pkgdown sites.
I have several packages with collections of demo/ files, and am wondering if there is anything further I can do with them to make them accessible.

thx,
-Michael

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Michael Friendly     Email: friendly AT yorku DOT ca
Professor, Psychology Dept.
York University      Voice: 416 736-2100 x66249
4700 Keele Street    Web: http://www.datavis.ca<http://www.datavis.ca/> | @datavisFriendly
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