nixmass

1.3.1

Snow Water Equivalent Modeling with the 'Delta.snow' and 'HS2SWE' Models and Empirical Regression Models

0packages depend

2.7Kdownloads / year

72.0%test coverage

13/13checks pass

Overview

About

Maintained by Harald SchellanderFirst published 2020-05-113 releasesCRAN page ↗

Snow water equivalent is modeled with the process based models 'delta.snow' and 'HS2SWE' and empirical regression, which use relationships between density and diverse at-site parameters. The methods are described in Winkler et al. (2021) doi:10.5194/hess-25-1165-2021, Magnusson et al. (2025) doi:10.1016/j.coldregions.2025.104435, Guyennon et al. (2019) doi:10.1016/j.coldregions.2019.102859, Pistocchi (2016) doi:10.1016/j.ejrh.2016.03.004, Jonas et al. (2009) doi:10.1016/j.jhydrol.2009.09.021 and Sturm et al. (2010) doi:10.1175/2010JHM1202.1.

Install

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

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

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

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-nixmass

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-nixmass

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-nixmass

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.7 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.49

72.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 161 wordsVignettesNopkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 100%
References docs: 60%

Downloads

2.7K

CRAN downloads in the past year

Rank #16,912 · ~7/day · ~226/mo

Releases R versions

Daily download trend is not available in this view yet.

21630 days

68490 days

2.7K1 year

Compare downloads with other packages →

Also on92 r2u21 autocran

Repository

GitHub ↗ haraldschellander/nixmass

0Stars

0Forks

4Open issues

0Open PRs

2Releases

123Commits

3Contributors

rr-packagemodelsnowpack

123 commits · Last activity 2025-08-12

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/haraldschellander/nixmass on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (5)

R >= 3.5.0ggplot2graphicsgrDevicesstats

Imports (6)

colorspace dplyr lubridate tidyrutilszoo

LinkingTo (0)

none

Suggests (2)

spelling testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 3,593 (86%)Rd 592 (14%)

Code characteristics

Object systems

S32

Cyclomatic complexity: 16.0 median / 97 max
Test cases: 121 / 0.49 per code line

Test coverage

Line coverage

72%

Expression

69.3%

Tests / Examples

72.0% / 86% ex

Functions

9 7 exported

Complexity

24.7 avg / 97 max

Call network

9 nodes / 6 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

9 functions

Function	Cyclo	Coverage
hs2swe exp	28	50%
swe.delta.snow exp	97	63%
swe.pi16 exp	10	85%
plot.nixmass	15	87%
swe.gu19 exp	16	89%
swe.jo09 exp	22	91%

People & History

People (2)

Maintainer (1)

Harald Schellander

Author, Maintainer, Copyright holder

Authors (1)

Harald Schellander

Author, Maintainer, Copyright holder

Contributors (1)

Michael Winkler

Contributor, Copyright holder

Harald Schellander

Author, Maintainer, Copyright holder

Michael Winkler

Contributor, Copyright holder

Package Timeline

3 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.3.1Latest
2025-05-10 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.0.2
2021-03-05 · diff ↗
1.0-1
2020-05-11
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-05-11
Total releases: 3 / 6 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Bundled data: 1.4 KB / 1 file
Download size: 45 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Report a problem with this page →