Пакет: r-cran-bit (1.1-14-1 и други)
Връзки за r-cran-bit
Ресурси за Debian:
- Доклади за грешки
- Developer Information
- Журнал на промените в Debian
- Авторски права
- Управление на кръпките в Debian
Изтегляне на пакет-източник r-cran-bit.
Отговорници:
Външни препратки:
- Начална страница [cran.r-project.org]
Подобни пакети:
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).
Други пакети, свързани с r-cran-bit
|
|
|
|
-
- dep: libc6 (>= 2.1.3) [i386]
- GNU C Library: Shared libraries
също и виртуален пакет, предлаган от libc6-udeb
- dep: libc6 (>= 2.17) [arm64]
- dep: libc6 (>= 2.2.5) [amd64]
- dep: libc6 (>= 2.4) [armhf]
-
- dep: r-api-3.5
- виртуален пакет, предлаган от r-base-core
-
- dep: r-base-core (>= 3.5.0-4) [arm64, i386]
- GNU R core of statistical computation and graphics system
- dep: r-base-core (>= 3.5.0-5) [amd64, armhf]
Изтегляне на r-cran-bit
Архитектура | Версия | Големина на пакета | Големина след инсталиране | Файлове |
---|---|---|---|---|
amd64 | 1.1-14-1+b1 | 216,0 кБ | 305,0 кБ | [списък на файловете] |
arm64 | 1.1-14-1+b1 | 213,5 кБ | 301,0 кБ | [списък на файловете] |
armhf | 1.1-14-1+b1 | 213,6 кБ | 296,0 кБ | [списък на файловете] |
i386 | 1.1-14-1+b1 | 216,5 кБ | 304,0 кБ | [списък на файловете] |