Description
Provides a gradient descent algorithm to find a geodesic relationship between real-valued independent variables and a manifold-valued dependent variable (i.e. geodesic regression). Available manifolds are Euclidean space, the sphere, hyperbolic space, and Kendall's 2-dimensional shape space. Besides the standard least-squares loss, the least absolute deviations, Huber, and Tukey biweight loss functions can also be used to perform robust geodesic regression. Functions to help choose appropriate cutoff parameters to maintain high efficiency for the Huber and Tukey biweight estimators are included, as are functions for generating random tangent vectors from the Riemannian normal distributions on the sphere and hyperbolic space. The n-sphere is a n-dimensional manifold: we represent it as a sphere of radius 1 and center 0 embedded in (n+1)-dimensional space. Using the hyperboloid model of hyperbolic space, n-dimensional hyperbolic space is embedded in (n+1)-dimensional Minkowski space as the upper sheet of a hyperboloid of two sheets. Kendall's 2D shape space with K landmarks is of real dimension 2K-4; preshapes are represented as complex K-vectors with mean 0 and magnitude 1. Details are described in Shin, H.-Y. and Oh, H.-S. (2020) <arXiv:2007.04518>. Also see Fletcher, P. T. (2013) <doi:10.1007/s11263-012-0591-y>.
Downloads
255
Last 30 days
19335th
597
Last 90 days
2.4K
Last year
Trend: +75.9% (30d vs prior 30d)
0
Last 30 days
24
Last 90 days
97
Last year
Trend: -100% (30d vs prior 30d)
2
Last 7 days
7
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 | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | NOTE |
| r-devel-linux-x86_64-fedora-gcc | NOTE |
| r-devel-windows-x86_64 | NOTE |
| r-oldrel-macos-arm64 | NOTE |
| r-oldrel-macos-x86_64 | NOTE |
| r-oldrel-windows-x86_64 | NOTE |
| r-patched-linux-x86_64 | NOTE |
| r-release-linux-x86_64 | NOTE |
| r-release-macos-arm64 | NOTE |
| r-release-macos-x86_64 | NOTE |
| r-release-windows-x86_64 | NOTE |
Check details (15 non-OK)
CRAN incoming feasibility
Maintainer: ‘Ha-Young Shin <hayoung.shin@gmail.com>’ The Description field contains Oh, H.-S. (2020) <arXiv:2007.04518>. Also see Fletcher, P. T. (2013) Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
CRAN incoming feasibility
Maintainer: ‘Ha-Young Shin <hayoung.shin@gmail.com>’ The Description field contains Oh, H.-S. (2020) <arXiv:2007.04518>. Also see Fletcher, P. T. (2013) Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Check History
NOTE 0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Ha-Young Shin <hayoung.shin@gmail.com>’ The Description field contains Oh, H.-S. (2020) <arXiv:2007.04518>. Also see Fletcher, P. T. (2013) Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
CRAN incoming feasibility
Maintainer: ‘Ha-Young Shin <hayoung.shin@gmail.com>’ The Description field contains Oh, H.-S. (2020) <arXiv:2007.04518>. Also see Fletcher, P. T. (2013) Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Rd files
checkRd: (-1) calvaria.Rd:8: Lost braces; missing escapes or markup?
8 | A named list containing \code{x} {a vector containing the ages}
| ^
checkRd: (-1) calvaria.Rd:9: Lost braces; missing escapes or markup?
9 | \code{y} {a matrix where each column is a preshape.} The 23rd, 101st,
| ^
Code
Structure
Lines of code
2,488
Files
21
Compiled share
0%
Has compiled src
No
Language breakdown
API
Exported functions
11
Internal functions
33
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
0%
Roxygen coverage
100%
Has pkgdown
No
NEWS present
No
Health & Security signals
Informational signals; not verdicts.
on.exit coverage
–
Unsafe pattern score
0
Dep constraint coverage
100%
Secret pattern count
0
Bundled 3rd-party code
2 items
Portability & License
Min R version
4.0.0
System requirements
–
C++ standard
–
License
GPL-3
License flags
SPDX valid, OSI approved
History
Versions
2
First release
2020-08-24
Latest release
2021-09-03
Avg cadence
375 days
Cold removal rate
–
Dep drift
1
LOC over versions
Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.