blosc
Compress and Decompress Data Using the 'BLOSC' Library
Description
Arrays of structured data types can require large volumes of disk space to store. 'Blosc' is a library that provides a fast and efficient way to compress such data. It is often applied in storage of n-dimensional arrays, such as in the case of the geo-spatial 'zarr' file format. This package can be used to compress and decompress data using 'Blosc'.
Downloads
465
Last 30 days
8949th
1.4K
Last 90 days
4.3K
Last year
Trend: +11.8% (30d vs prior 30d)
30
Last 30 days
128
Last 90 days
395
Last year
Trend: -33.3% (30d vs prior 30d)
CRAN Check Status
Show all 13 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | OK |
| r-devel-linux-x86_64-debian-gcc | OK |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check History
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 8, 2026
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE May 7, 2026
top-level files
Output from running autoreconf: autoreconf: error: aclocal terminated by signal: 2
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 2, 2026
NOTE 11 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026
compiled code
File ‘blosc/libs/blosc.so’: Found non-API call to R: ‘R_NamespaceRegistry’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 8, 2026
NOTE 13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 30, 2026
compiled code
File ‘blosc/libs/blosc.so’: Found non-API call to R: ‘R_NamespaceRegistry’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
Code
Structure
Lines of code
2,219
Files
46
Compiled share
58.4%
Has compiled src
Yes
Language breakdown
API
Exported functions
5
Internal functions
8
Recent export changes
Testing & CI
Has tests
Yes
Test-to-code ratio
1.15
testthat edition
3
CI present
No
CI type
[]
PR gated
No
Docs
Return-value doc rate
100%
\dontrun example ratio
0%
Roxygen coverage
100%
Has pkgdown
No
NEWS present
Yes
Health & Security signals
Informational signals; not verdicts.
on.exit coverage
–
Unsafe pattern score
0
Dep constraint coverage
–
Secret pattern count
0
Bundled 3rd-party code
2 items
Portability & License
Min R version
4.3
System requirements
1
C++ standard
–
License
GPL (>= 3)
License flags
SPDX valid, OSI approved
History
Versions
3
First release
2025-09-01
Latest release
2025-09-26
Avg cadence
13 days
Cold removal rate
–
Dep drift
0
LOC over versions
Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.