Package: r-cran-bit Status: install ok installed Priority: optional Section: gnu-r Installed-Size: 1352 Maintainer: Debian R Packages Maintainers <r-pkg-team@alioth-lists.debian.net> [Debian Bug Report] Architecture: amd64 Version: 4.0.5-1 Depends: r-base-core (>= 4.2.2.20221110-1), r-api-4.0, libc6 (>= 2.4) Suggests: r-cran-testthat (>= 0.11.0), r-cran-roxygen2, r-cran-knitr, r-cran-rmarkdown, r-cran-bit64 (>= 4.0.0), r-cran-ff (>= 4.0.0) Description: GNU R class for vectors of 1-bit booleans This GNU R package provides bitmapped vectors of booleans (no NAs), coercion from and to logicals, integers and integer subscripts; fast boolean operators and fast summary statistics. With 'bit' vectors you can store true binary booleans {FALSE,TRUE} at the expense of 1 bit only, on a 32 bit architecture this means factor 32 less RAM and ~ factor 32 more speed on boolean operations. Due to overhead of R calls, actual speed gain depends on the size of the vector: expect gains for vectors of size > 10000 elements. Even for one-time boolean operations it can pay-off to convert to bit, the pay-off is obvious, when such components are used more than once. Reading from and writing to bit is approximately as fast as accessing standard logicals - mostly due to R's time for memory allocation. The package allows one to work with pre-allocated memory for return values by calling .Call() directly: when evaluating the speed of C-access with pre-allocated vector memory, coping from bit to logical requires only 70% of the time for copying from logical to logical; and copying from logical to bit comes at a performance penalty of 150%. the package now contains further classes for representing logical selections: 'bitwhich' for very skewed selections and 'ri' for selecting ranges of values for chunked processing. All three index classes can be used for subsetting 'ff' objects (ff-2.1-0 and higher). Homepage: https://cran.r-project.org/package=bit Files owned by package r-cran-bit: /usr /usr/lib /usr/lib/R /usr/lib/R/site-library /usr/lib/R/site-library/bit /usr/lib/R/site-library/bit/DESCRIPTION /usr/lib/R/site-library/bit/INDEX /usr/lib/R/site-library/bit/Meta /usr/lib/R/site-library/bit/Meta/Rd.rds /usr/lib/R/site-library/bit/Meta/features.rds /usr/lib/R/site-library/bit/Meta/hsearch.rds /usr/lib/R/site-library/bit/Meta/links.rds /usr/lib/R/site-library/bit/Meta/nsInfo.rds /usr/lib/R/site-library/bit/Meta/package.rds /usr/lib/R/site-library/bit/Meta/vignette.rds /usr/lib/R/site-library/bit/NAMESPACE /usr/lib/R/site-library/bit/NEWS /usr/lib/R/site-library/bit/R /usr/lib/R/site-library/bit/R/bit /usr/lib/R/site-library/bit/R/bit.rdb /usr/lib/R/site-library/bit/R/bit.rdx /usr/lib/R/site-library/bit/doc /usr/lib/R/site-library/bit/doc/bit-demo.R /usr/lib/R/site-library/bit/doc/bit-demo.Rmd /usr/lib/R/site-library/bit/doc/bit-demo.pdf /usr/lib/R/site-library/bit/doc/bit-performance.R /usr/lib/R/site-library/bit/doc/bit-performance.Rmd /usr/lib/R/site-library/bit/doc/bit-performance.pdf /usr/lib/R/site-library/bit/doc/bit-usage.R /usr/lib/R/site-library/bit/doc/bit-usage.Rmd /usr/lib/R/site-library/bit/doc/bit-usage.pdf /usr/lib/R/site-library/bit/doc/index.html /usr/lib/R/site-library/bit/help /usr/lib/R/site-library/bit/help/AnIndex /usr/lib/R/site-library/bit/help/aliases.rds /usr/lib/R/site-library/bit/help/bit.rdb /usr/lib/R/site-library/bit/help/bit.rdx /usr/lib/R/site-library/bit/help/paths.rds /usr/lib/R/site-library/bit/html /usr/lib/R/site-library/bit/html/00Index.html /usr/lib/R/site-library/bit/html/R.css /usr/lib/R/site-library/bit/libs /usr/lib/R/site-library/bit/libs/bit.so /usr/share /usr/share/doc /usr/share/doc/r-cran-bit /usr/share/doc/r-cran-bit/changelog.Debian.gz /usr/share/doc/r-cran-bit/copyright