Contributing to trialdiff

Thanks for your interest in trialdiff.

Development workflow

1. Fork and clone the repository.

2. Install development dependencies:

   install.packages(c("devtools", "roxygen2", "testthat", "pkgdown",
                      "lintr", "styler", "covr"))

3. Make your change, add tests, and update documentation:

   devtools::document()
   devtools::test()
   devtools::check()

4. Style your code with styler::style_pkg() and lint with lintr::lint_package().

5. Open a pull request describing the change and referencing any issue.

Design constraints

• Deterministic comparison only - no machine learning in the core.
• Rules must be transparent and documented.
• Impact assessment must never claim statistical significance.
• No proprietary or real patient data may be committed. Use the synthetic generators in data-raw/.

Code style

• snake_case for functions and variables, SNAKE_CASE for constants.
• Internal helpers are prefixed with td_.
• Every exported function needs a roxygen block, an example, and a test.