Description
Represents generalized geometric ellipsoids with the "(U,D)" representation. It allows degenerate and/or unbounded ellipsoids, together with methods for linear and duality transformations, and for plotting. Thus ellipsoids are naturally extended to include lines, hyperplanes, points, cylinders, etc. This permits exploration of a variety to statistical issues that can be visualized using ellipsoids as discussed by Friendly, Fox & Monette (2013), Elliptical Insights: Understanding Statistical Methods Through Elliptical Geometry <doi:10.1214/12-STS402>.
Downloads
261
Last 30 days
18754th
614
Last 90 days
2.4K
Last year
Trend: +80% (30d vs prior 30d)
0
Last 30 days
24
Last 90 days
94
Last year
Trend: -100% (30d vs prior 30d)
6
Last 7 days
20
Last 30 days
1
All-time
autoCRAN-only: this name is served only by autoCRAN, so the count is exact.
CRAN Check Status
Show all 13 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| 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 details (2 non-OK)
CRAN incoming feasibility
Maintainer: ‘Michael Friendly <friendly@yorku.ca>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Georges",
family = "Monette",
role = "aut"),
person(given = "Michael",
family = "Friendly",
role = c("aut", "cre"),
email = "friendly@yorku.ca"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Michael Friendly <friendly@yorku.ca>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Georges",
family = "Monette",
role = "aut"),
person(given = "Michael",
family = "Friendly",
role = c("aut", "cre"),
email = "friendly@yorku.ca"))
as necessary.
Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Michael Friendly <friendly@yorku.ca>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Georges",
family = "Monette",
role = "aut"),
person(given = "Michael",
family = "Friendly",
role = c("aut", "cre"),
email = "friendly@yorku.ca"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Michael Friendly <friendly@yorku.ca>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Georges",
family = "Monette",
role = "aut"),
person(given = "Michael",
family = "Friendly",
role = c("aut", "cre"),
email = "friendly@yorku.ca"))
as necessary.
Code
Structure
Lines of code
1,630
Files
35
Compiled share
0%
Has compiled src
No
Language breakdown
API
Exported functions
15
Internal functions
8
Recent export changes
Testing & CI
Has tests
No
Test-to-code ratio
0.00
testthat edition
–
CI present
No
CI type
[]
PR gated
No
Docs
Return-value doc rate
100%
\dontrun example ratio
9.1%
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
–
System requirements
–
C++ standard
–
License
GPL (>= 2)
License flags
SPDX valid, OSI approved
History
Versions
2
First release
2022-04-22
Latest release
2023-08-20
Avg cadence
485 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.