The canonical form [1] of an R package Makefile includes the
following:
- The first stanza includes R_PKGNAME, R_PKGVER, PKGREVISION (as
needed), and CATEGORIES.
- HOMEPAGE is not present but defined in math/R/Makefile.extension to
refer to the CRAN web page describing the package. Other relevant
web pages are often linked from there via the URL field.
This updates all current R packages to this form, which will make
regular updates _much_ easier, especially using pkgtools/R2pkg.
[1] http://mail-index.netbsd.org/tech-pkg/2019/08/02/msg021711.html
Streamlined data import and export by making assumptions that the user
is probably willing to make: 'import()' and 'export()' determine the
data structure from the file extension, reasonable defaults are used
for data import and export (e.g., 'stringsAsFactors=FALSE'), web-based
import is natively supported (including from SSL/HTTPS), compressed
files can be read directly without explicit decompression, and fast
import packages are used where appropriate. An additional convenience
function, 'convert()', provides a simple method for converting between
file types.
