Dictionary-based compression | Why should I use a dictionary? | When is a dictionary useful? | How do I train a dictionary? | How large should my dictionary be? | How many samples should I provide to the dictionary builder? | How do I determine if a dictionary will be effective? | When should I retrain a dictionary? | Example
Package: zstdlite 0.2.6
Mike Cheng
zstdlite: Fast Compression and Serialization with 'Zstandard' Algorithm
Fast, compressed serialization of R objects using the 'Zstandard' algorithm. R objects can be compressed and decompressed quickly using the standard serialization mechanism in R. Raw byte vectors and strings are also handled directly for compatibility with compressed data created by other systems and programs supporting 'Zstandard' compression. Dictionaries are supported for more effective compression of small data, and functions are provided for training these dictionaries. This implementation is a wrapper around the 'Zstandard' 'C' library which is available from <https://github.com/facebook/zstd>.
Authors:
zstdlite_0.2.6.tar.gz
zstdlite_0.2.6.zip(r-4.5)
zstdlite_0.2.6.tgz(r-4.5-x86_64)zstdlite_0.2.6.tgz(r-4.5-arm64)
zstdlite_0.2.6.tgz(r-4.5-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
zstdlite/json (API)
| # Install 'zstdlite' in R: |
| install.packages('zstdlite', repos = c('https://r-multiverse.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/coolbutuseless/zstdlite/issues
Last updated from:585458ccbe (on v0.2.6). Checks:6 FAIL, 4 OK, 3 NOTE. Indexed: no.
The latest version of this package failed to build. Look at thebuild logs for more information.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel-arm64 | FAIL | 118 | ||
| linux-devel-x86_64 | FAIL | 128 | ||
| source / vignettes | OK | 178 | ||
| linux-release-arm64 | OK | 122 | ||
| linux-release-x86_64 | OK | 128 | ||
| macos-release-arm64 | FAIL | 69 | ||
| macos-release-x86_64 | FAIL | 181 | ||
| macos-oldrel-arm64 | NOTE | 106 | ||
| macos-oldrel-x86_64 | NOTE | 280 | ||
| windows-devel | FAIL | 56 | ||
| windows-release | FAIL | 96 | ||
| windows-oldrel | NOTE | 106 | ||
| wasm-release | OK | 97 |
Exports:zstd_cctxzstd_cctx_settingszstd_compresszstd_dctxzstd_dctx_settingszstd_decompresszstd_dict_idzstd_serializezstd_train_dict_compresszstd_train_dict_serializezstd_unserializezstd_version
Dependencies:
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Initialise a ZSTD compression context | zstd_cctx |
| Get the configuration settings of a compression context | zstd_cctx_settings |
| Compress/Decompress raw vectors and character strings. | zstd_compress zstd_decompress |
| Initialise a ZSTD decompression context | zstd_dctx |
| Get the configuration settings of a decompression context | zstd_dctx_settings |
| Get the Dictionary ID of a dictionary or a vector compressed data. | zstd_dict_id |
| Serialize/Unserialize arbitrary R objects to a compressed stream of bytes using Zstandard | zstd_serialize zstd_unserialize |
| Train a dictionary for use with 'zstd_compress()' and 'zstd_decompress()' | zstd_train_dict_compress |
| Train a dictionary for use with 'zstd_serialize()' and 'zstd_unserialize()' | zstd_train_dict_serialize |
| Get version string of zstd C library | zstd_version |
