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
Each R package should include ../../math/R/Makefile.extension, which also
defines MASTER_SITES. Consequently, it is redundant for the individual
packages to do the same. Package-specific definitions also prevent
redefining MASTER_SITES in a single common place.
Package 'bit64' provides serializable S3 atomic 64bit (signed)
integers. These are useful for handling database keys and exact
counting in +-2^63. WARNING: do not use them as replacement for 32bit
integers, integer64 are not supported for subscripting by R-core and
they have different semantics when combined with double,
e.g. integer64 + double => integer64. Class integer64 can be used in
vectors, matrices, arrays and data.frames. Methods are available for
coercion from and to logicals, integers, doubles, characters and
factors as well as many elementwise and summary functions. Many fast
algorithmic operations such as 'match' and 'order' support interactive
data exploration and manipulation and optionally leverage caching.
