SMMT

1.2.0

The Swiss Municipal Data Merger Tool Maps Municipalities Over Time

0packages depend

2.8Kdownloads / year

28.0%test coverage

13/13checks pass

Overview

About

Maintained by Valentin KnechtlFirst published 2020-06-296 releasesCRAN page ↗GitHub ↗

In Switzerland, the landscape of municipalities is changing rapidly mainly due to mergers. The Swiss Municipal Data Merger Tool automatically detects these mutations and maps municipalities over time, i.e. municipalities of an old state to municipalities of a new state. This functionality is helpful when working with datasets that are based on different spatial references. The package's idea and use case is discussed in the following article: doi:10.1111/spsr.12487.

Install

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

install.packages("SMMT", 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("ValValetl/SMMT")

Development version from ValValetl/SMMT. 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-smmt

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-SMMT

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-SMMT

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

Health

CRAN checks

13OK

Slowest check: 1.9 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.15

28.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

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

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 90%
References docs: 0%

Downloads

2.8K

CRAN downloads in the past year

Rank #16,333 · ~8/day · ~233/mo

Releases R versions

Daily download trend is not available in this view yet.

19130 days

70190 days

2.8K1 year

Compare downloads with other packages →

Also on97 r2u31 autocran

Repository

GitHub ↗ valvaletl/smmt

6Stars

1Forks

1Open issues

0Open PRs

1Releases

62Commits

1Contributors

switzerlandmunicipalitiesdata-managementrcranstatistics

62 commits · Last activity 2024-05-19 · 0% stars, 30d

Stars over time

2023-05-25 · 42026-07-07 · 6

Repository practices

Upstream repositoryBeta

Checks run against github.com/valvaletl/smmt on 2026-07-19.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (6)

dplyr XML tibble curl rvest xml2

LinkingTo (0)

none

Suggests (4)

testthat roxygen2 knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 829 (54%)Rd 474 (31%)Vignettes 239 (15%)

Code characteristics

Cyclomatic complexity: 2.0 median / 8 max
Test cases: 4 / 0.15 per code line

Test coverage

Line coverage

28%

Expression

24.5%

Tests / Examples

28.0% / 48% ex

Functions

11 10 exported

Complexity

3.3 avg / 8 max

Call network

11 nodes / 9 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

11 functions

Function	Cyclo	Coverage
date_of_last_update exp	1	0%
download_municipality_inventory exp	3	0%
map_old_to_new_state exp	8	0%
most_recent_changes exp	1	0%
municipality_counter exp	6	0%
mutation_count exp	3	0%

People & History

People (1)

Maintainer (1)

Valentin Knechtl

Author, Maintainer

Authors (1)

Valentin Knechtl

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.2.0Latest
2024-05-20 · current release · diff ↗
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
1.1.0
2022-04-03 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0.7
2021-02-20 · diff ↗
1.0.5
2020-11-23 · diff ↗
1.0.2
2020-07-16 · diff ↗
1.0.1
2020-06-29
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-06-29
Total releases: 6 / 6 yrs
License: GPL-3 OSI
Download size: 300 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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