This PR implements automatic citation fetching for thecite_easystats() function, eliminating the need for manual maintenance of hardcoded citation data.

Problem

Thecite_easystats() function previously relied on hardcoded citation strings and static bibliography files that required constant manual updates as package information changed. This led to outdated author lists, incorrect version numbers, and stale publication information.

Solution

The function now automatically fetches current citations using R's built-incitation() function for each package, ensuring citations are always up-to-date. The implementation includes:

• Automatic citation generation: Usescitation(package) to get current article citations and generates software citations from package metadata
• Improved formatting: Clean, readable citation format with "First Author et al." for packages with many authors
• Graceful fallback: Falls back to hardcoded citations if automatic generation fails
• Backward compatibility: Same function interface and output structure

Example

library(report)# Now automatically generates current citationsresult<- cite_easystats(packages= c("insight","bayestestR"),format="text")print(result)#> Citations#> ----------#> Analyses were conducted using the _easystats_ collection of packages#> (Lüdecke et al., 2019, 2019/2025, Makowski et al., 2019, 2019/2025).#>#> References#> ----------#> - Daniel Lüdecke et al. (2025). insight: Easy Access to Model Information#>     for Various Model Objects [R package]. https://CRAN.R-project.org/package=insight#> - Daniel Lüdecke, Philip Waggoner, Dominique Makowski (2019). {insight}: A Unified#>     Interface to Access Information from Model Objects in {R}.. Journal of Open#>     Source Software, 4(38), 1412. https://doi.org/10.21105/joss.01412#> ...

Key Benefits

• Always current: Citations automatically reflect the latest package information
• Version accuracy: Shows actual installed versions (e.g., 2025 for current packages)
• Author precision: Uses exact author information from each package's DESCRIPTION file
• Maintenance-free: No more manual updates to hardcoded citation strings

Testing

Added comprehensive test suite (tests/testthat/test-cite_easystats_automatic.R) covering:

• Automatic citation generation accuracy
• Graceful handling of missing packages
• Citation format and content validation
• Integration with existing functionality

All tests pass ✅

Fixes#529.

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