パッケージ: r-cran-bit (4.0.5-1 など)
r-cran-bit に関するリンク
Debian の資源:
r-cran-bit ソースパッケージをダウンロード:
メンテナ:
外部の資源:
- ホームページ [cran.r-project.org]
類似のパッケージ:
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).
その他の r-cran-bit 関連パッケージ
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- dep: libc6 (>= 2.17) [arm64, ppc64el]
- GNU C ライブラリ: 共有ライブラリ
以下のパッケージによって提供される仮想パッケージでもあります: libc6-udeb
- dep: libc6 (>= 2.27) [riscv64]
- dep: libc6 (>= 2.4) [arm64, ppc64el, riscv64 以外]
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- dep: r-api-4.0
- 以下のパッケージによって提供される仮想パッケージです: r-base-core
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- dep: r-base-core (>= 4.2.2.20221110-1) [arm64, riscv64 以外]
- GNU R core of statistical computation and graphics system
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- sug: r-cran-bit64 (>= 4.0.0)
- GNU R S3 Class for Vectors of 64bit Integers
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- sug: r-cran-ff (>= 4.0.0)
- Memory-Efficient Fast-Access Storage of Large Data
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- sug: r-cran-knitr
- GNU R package for dynamic report generation using Literate Programming
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- sug: r-cran-microbenchmark [arm64]
- GNU R package for Accurate Timeing Functions
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- sug: r-cran-rmarkdown
- convert R markdown documents into a variety of formats
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- sug: r-cran-roxygen2
- in-line documentation for GNU R
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- sug: r-cran-testthat (>= 0.11.0)
- GNU R testsuite
r-cran-bit のダウンロード
| アーキテクチャ | バージョン | パッケージサイズ | インストールサイズ | ファイル |
|---|---|---|---|---|
| amd64 | 4.0.5-1 | 1,045.4 kB | 1,352.0 kB | [ファイル一覧] |
| arm64 | 4.0.5-1+b1 | 1,049.4 kB | 1,392.0 kB | [ファイル一覧] |
| armel | 4.0.5-1 | 1,032.4 kB | 1,378.0 kB | [ファイル一覧] |
| armhf | 4.0.5-1 | 1,035.4 kB | 1,314.0 kB | [ファイル一覧] |
| i386 | 4.0.5-1 | 1,044.9 kB | 1,366.0 kB | [ファイル一覧] |
| mips64el | 4.0.5-1 | 1,034.1 kB | 1,386.0 kB | [ファイル一覧] |
| ppc64el | 4.0.5-1 | 1,048.1 kB | 1,444.0 kB | [ファイル一覧] |
| riscv64 | 4.0.5-1+b1 | 1,043.8 kB | 1,336.0 kB | [ファイル一覧] |
| s390x | 4.0.5-1 | 1,041.7 kB | 1,379.0 kB | [ファイル一覧] |