crochet
Implementation Helper for '[' and '[<-' of Custom Matrix-Like Types
Description
Functions to help implement the extraction / subsetting / indexing function '[' and replacement function '[<-' of custom matrix-like types (based on S3, S4, etc.), modeled as closely to the base matrix class as possible (with tests to prove it).
Downloads
1.2K
Last 30 days
3389th
2.9K
Last 90 days
18.3K
Last year
Trend: +37.4% (30d vs prior 30d)
9
Last 30 days
61
Last 90 days
163
Last year
Trend: -62.5% (30d vs prior 30d)
1
Last 7 days
7
Last 30 days
0
All-time
autoCRAN-only: this name is served only by autoCRAN, so the count is exact.
748
Last 30 days
1.3K
Last 90 days
1.8K
Last year
Trend: +51.4% (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 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
Code & tests
Open call graph →Line coverage
–
Expression
–
Tests / Examples
–
Functions
8 5 exported
Complexity
11.6 avg / 29 max
Call network
8 nodes / 4 edges
Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.
Lowest coverage
Per-function coverage is not measured for this package yet.
Code
Structure
Lines of code
781
Files
25
Compiled share
0%
Has compiled src
No
Language breakdown
API
Exported functions
5
Internal functions
3
Recent export changes
Testing & CI
Has tests
Yes
Test-to-code ratio
0.01
testthat edition
–
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
0%
Secret pattern count
0
Bundled 3rd-party code
2 items
Portability & License
Min R version
3.0.0
System requirements
–
C++ standard
–
License
MIT + file LICENSE
License flags
SPDX valid, OSI approved
History
Versions
6
First release
2017-05-06
Latest release
2020-05-20
Avg cadence
242 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.