R Observatory: Metrics for spCF version 0.2.2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

spCF

0.2.2.1Package record

Coarse-to-Fine Spatial and Spatio-Temporal Modeling

0packages depend

2.9Kdownloads / year

74.4%test coverage

13/13flavors OK

Overview

About

Maintained by Daisuke MurakamiCRAN page ↗GitHub ↗Issues ↗

Provides functions for coarse-to-fine spatial and spatio-temporal modeling, enabling fast prediction, regression, and uncertainty quantification for moderate to large datasets. For methodological details, see Murakami et al. (2026) doi:10.1111/gean.70034 and related work on generalized linear, downscaling, and dynamic spatio-temporal extensions.

Changes in 0.2.2.1

Tests only: the predict() tests compared predictions made in different batches for exact identity. With an alternative BLAS (BLIS, OpenBLAS) the matrix products of different sizes are evaluated in a different order, so the results agree only up to rounding (about 1e-16); they are now compared with a tolerance of 1e-10. No change to the package code.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("spCF", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("dmuraka/spCF")

Development version from dmuraka/spCF. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-spcf

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-spCF

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-spCF

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 5.3 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

Documentation signals are not tracked yet for this package.

Websitenot declared in DESCRIPTION

Vignettes (4)

How these are measured

Downloads

2.9K

CRAN downloads in the past year

Rank #8,635 · ~8/day · ~245/mo

spCF Releases R versions

Daily download trend is not available in this view yet.

46930 days

1.1K90 days

2.9K1 year

Compare downloads with other packages →

Also on207 r2u6 autocran

How downloads are counted

Repository

dmuraka/spcf ↗Account: dmuraka

2Stars

0Forks

0Open issues

0Open PRs

0Releases

27Commits

3Commit identities

27 commits · Last activity 2026-10-07 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

How these are measured

PracticesBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/dmuraka/spcf on 2026-10-11.

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen on or before 2026-05-06
Named in .Rbuildignore: .claude
Commits: at least 9 crediting it in the message

Models named in its commits

Claude Opus 5.55 commits · Oct 2026
Claude Opus 4.82 commits · Aug 2026
Claude Opus 52 commits · Aug 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

19 external dependencies (excludes base and recommended)

Installing spCF adds 12 packages (8 with compiled code, 18 MB of source tarballs). Heaviest: fields 3.9 MB, dbscan 3.8 MB, spam 3.1 MB.

Depends (1)

R >= 4.1.0

Imports (7)

FNN fields nloptr dbscan withrMatrixRcpp

LinkingTo (1)

Rcpp

Suggests (13)

sp sf knitr rmarkdown CARBayesdata ranger lightgbm shiny bslib leaflet terraMASStestthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (9)

Daisuke Murakami

Author, Maintainer since 0.1.0 (2026)

Author

Author

Author

Author

Author

Jose Luis Blanco-Claraco

Contributor, Copyright holder · added in 0.2.0

Author of the bundled 'nanoflann' C++ library (src/nanoflann.h)

David G. Lowe

Copyright holder

Copyright holder of the bundled 'nanoflann' C++ library

Marius Muja

Copyright holder · added in 0.2.0

Copyright holder of the bundled 'nanoflann' C++ library

Listed in earlier versions (1)

David G.

no longer listed · 0.2.0 to 0.2.2.1

Releases (7)

0.2.2.1Latest
record
2026-10-07 · current release · diff ↗ ·
15 hours in CRAN's queue
Listed in CRAN's incoming queue from 2026-10-06 15:36 to 2026-10-07 06:45 UTC, in 4 readings.
0.2.2
record
2026-10-05 · diff ↗ ·
added 1 export
negbin
0.2.1
record
2026-08-28 · diff ↗
0.2.0
record
2026-08-04 · diff ↗ ·
added 3 exports
cf_dglm, cf_dglm_hv, spCFmap
0.1.2
record
2026-06-29 · diff ↗ ·
added 2 exports
cf_downscale, cf_downscale_hv
0.1.1
record
2026-05-01 · diff ↗ ·
added 2 exports
cf_glm, cf_glm_hv
R
R 4.6.0 released · 2026-04-24
0.1.0
record
2026-01-19
R
R 4.5.0 released · 2025-04-11

Across CRAN, the median accepted release of the past year spent 15 hours in the queue, 90% under 11 days.How queue time is measured

Package metadata

First published: 2026-01-19
Total releases: 7 / 1 yrs
License: GPL (>= 2) OSI
Download size: 1.9 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("spCF")

Format

Murakami, D., Blanco-Claraco, J. L., Brunsdon, C., Comber, A., Lowe, D. G., Muja, M., Nakaya, T., Tsutsumida, N., & Yoshida, T. (2026). spCF: Coarse-to-Fine Spatial and Spatio-Temporal Modeling (Version 0.2.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.spCF

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for spCF version 0.2.2.1 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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