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gerda 0.4.0

Bug Fixes and Improvements

• Improved error messages for deprecated federal_muni_harm dataset with clear migration guidance
• Enhanced fuzzy matching to prioritize prefix matches (e.g., federal_muni_harm now correctly suggests federal_muni_harm_21 and federal_muni_harm_25)
• Added references to gerda_data_list() in all error messages to help users discover available datasets
• Updated README and vignette to reflect current data coverage (1990-2025)
• Fixed function references in documentation (gerda_covariates and gerda_covariates_codebook)

gerda 0.3.0

New Features

• Added county-level covariates functionality: Easy access to socioeconomic and demographic indicators (1995-2022)
  • New function: add_gerda_covariates() - One-step helper to merge covariates with election data
  • New function: gerda_covariates() - Access raw covariate data (400 counties, 20 variables)
  • New function: gerda_covariates_codebook() - View data dictionary with variable descriptions
  • Works with both county-level and municipal-level election data
  • 400 German counties with covariates from INKAR
  • Includes demographics, economy, labor market, education, and income variables
  • Data source: Bundesinstitut für Bau-, Stadt- und Raumforschung (BBSR)
  • Function-based API prevents namespace pollution and merge errors

Other Changes

• Updated R dependency to >= 3.5.0 (required for internal data serialization)

gerda 0.2.1

Bug Fixes and Improvements

• Improved error message clarity for file extensions
• Changed message from “Format ignored” to “File extension (.rds or .csv) not required - adding it is optional”
• Simplified user messages by removing redundant information about data format independence
• Updated tests to match improved message format

gerda 0.2.0

New Features

• Added support for 2025 German federal election data
• New datasets available:
  • federal_muni_harm_21: Federal elections harmonized to 2021 boundaries (1990-2025)
  • federal_muni_harm_25: Federal elections harmonized to 2025 boundaries (1990-2025)

Breaking Changes

• Removed federal_muni_harm dataset (replaced by boundary-specific versions)
• Users should now use federal_muni_harm_21 or federal_muni_harm_25 depending on their boundary harmonization needs

Improvements

• Updated data coverage to include 2025 federal election results
• Improved dataset descriptions to clarify boundary harmonization
• Enhanced error messages with helpful suggestions for deprecated dataset names

Bug Fixes

• Updated all URLs to reflect new repository structure
• Fixed dataset count in documentation and tests

gerda 0.1.0

• Initial CRAN submission
• Access to German election data from 1990-2021
• Support for municipal, state, and federal election data
• Geographically harmonized datasets
• Cross-walk tables for boundary changes

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.