riemtan
Riemannian Metrics for Symmetric Positive Definite Matrices
Description
Implements various Riemannian metrics for symmetric positive definite matrices, including AIRM (Affine Invariant Riemannian Metric, <doi:10.1007/s11263-005-3222-z>), Log-Euclidean (<doi:10.1002/mrm.20965>), Euclidean, Log-Cholesky (<doi:10.1137/18M1221084>), and Bures-Wasserstein metrics (<doi:10.1016/j.exmath.2018.01.002>). Provides functions for computing logarithmic and exponential maps, vectorization, and statistical operations on the manifold of positive definite matrices.
Downloads
285
Last 30 days
16710th
631
Last 90 days
2.3K
Last year
Trend: +78.1% (30d vs prior 30d)
24
Last 30 days
124
Last 90 days
351
Last year
Trend: -45.5% (30d vs prior 30d)
1
Last 7 days
11
Last 30 days
0
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 | 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 Jun 9, 2026
ERROR 12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 8, 2026
whether package can be installed
Installation failed. See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/riemtan.Rcheck/00install.out’ for details.
OK 12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 22, 2026
installed package size
installed size is 24.4Mb
sub-directories of 1Mb or more:
libs 23.7Mb
installed package size
installed size is 24.9Mb
sub-directories of 1Mb or more:
libs 24.1Mb
ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 18, 2026
whether package can be installed
Installation failed. See 'd:/Rcompile/CRANpkg/local/4.6/riemtan.Rcheck/00install.out' for details.
installed package size
installed size is 24.4Mb
sub-directories of 1Mb or more:
libs 23.7Mb
installed package size
installed size is 24.9Mb
sub-directories of 1Mb or more:
libs 24.1Mb
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 28, 2026
installed package size
installed size is 24.4Mb
sub-directories of 1Mb or more:
libs 23.7Mb
installed package size
installed size is 24.9Mb
sub-directories of 1Mb or more:
libs 24.1Mb
ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 24, 2026
tests
Running 'testthat.R' [300s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
> library(testthat)
> library(riemtan)
Attaching package: 'riemtan'
The following object is masked from 'package:stats':
dexp
>
...[truncated]...
├─base::do.call(makeClusterPSOCK, args = args, quote = TRUE)
12. └─parallelly (local) `<fn>`(base::quote(2L), rscript_libs = base::quote(`<chr>`))
[ FAIL 1 | WARN 19 | SKIP 0 | PASS 380 ]
Error:
! Test failures.
Execution halted
installed package size
installed size is 24.4Mb
sub-directories of 1Mb or more:
libs 23.7Mb
installed package size
installed size is 24.9Mb
sub-directories of 1Mb or more:
libs 24.1Mb
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
installed package size
installed size is 24.4Mb
sub-directories of 1Mb or more:
libs 23.7Mb
installed package size
installed size is 24.9Mb
sub-directories of 1Mb or more:
libs 24.1Mb
Code
Structure
Lines of code
9,992
Files
120
Compiled share
8.9%
Has compiled src
Yes
Language breakdown
API
Exported functions
56
Internal functions
23
Recent export changes
Testing & CI
Has tests
Yes
Test-to-code ratio
0.52
testthat edition
3
CI present
No
CI type
[]
PR gated
No
Docs
Return-value doc rate
92.9%
\dontrun example ratio
54.5%
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
9.1%
Secret pattern count
0
Bundled 3rd-party code
2 items
Portability & License
Min R version
4.3.0
System requirements
–
C++ standard
–
License
MIT + file LICENSE
License flags
SPDX valid, OSI approved
History
Versions
2
First release
2025-04-23
Latest release
2025-11-10
Avg cadence
201 days
Cold removal rate
–
Dep drift
6
LOC over versions
Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.