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undidR 2.0.0

• start_time and end_time columns are now stored as strings in the format specified by date_format column in the empty_diff_df CSV file.
• Fixed as.Date() calls in undid_stage_two(), undid_stage_three(), and plot_parllel_trends() to ensure compatability for R versions 4.0.0 and onwards.

undidR 1.0.2

• Made compatible for R versions 4.0.0 onwards.

undidR 1.0.1

• Fixed the miscalculation of standard weights during stage two under common adoption scenarios.

undidR 1.0.0

• Initial CRAN submission.
• Updated installation instructions.

undidR 0.1.0

• Initial development version (not yet submitted to CRAN).
• Provides a framework for implementing difference-in-differences with unpoolable data.

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.