valvaletl/smmt

R tool to get municipality mapping table between two time points for Swiss municipalities

Swiss Municipality Data Merger Tool

Introduction

The SMMT is an R Package which helps merge municipal level data sets available for different points in time.

If you ever worked with Swiss municipal-level data, you almost certainly encountered the issue that the municipal state of your dataset is not the one you desired. E.g. it’s not the actual municpial state or it does not match the state of a second dataset.

This R package helps to bring the municipal states together.

A good starting point is this vignette article.

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 like for example Swiss voting data.

Installation

# Install released version from CRAN
install.packages("SMMT")

# Install most recent version from github.
devtools::install_github("ValValetl/SMMT")

Get started

• Read the vignette vignette("manual") / online
• Look up the documentation of ?map_old_to_new_state

Resources

• SMMT on CRAN
• For more background details, see this article in the Swiss Political Science Review.

Further documentation

• eCH-0071 Datenstandard Historisiertes Gemeindeverzeichnis der Schweiz: The Swiss municipal inventory is a well documented data standard which can be consulted at this webpage.