carts

Description

Monte Carlo simulation framework for different randomized clinical trial designs with a special emphasis on estimators based on covariate adjustment. The package implements regression-based covariate adjustment (Rosenblum & van der Laan (2010) <doi:10.2202/1557-4679.1138>) and a one-step estimator (Van Lancker et al (2024) <doi:10.48550/arXiv.2404.11150>) for trials with continuous, binary and count outcomes. The estimation of the minimum sample-size required to reach a specified statistical power for a given estimator uses bisection to find an initial rough estimate, followed by stochastic approximation (Robbins-Monro (1951) <doi:10.1214/aoms/1177729586>) to improve the estimate, and finally, a grid search to refine the estimate in the neighborhood of the current best solution.

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Check History

Running ‘tinytest.R’ [65s/70s]
Running the tests in ‘tests/tinytest.R’ failed.
Complete output:
  > if (requireNamespace("tinytest", quietly = TRUE)) {
  +   options(Ncpus = 2)
  +   data.table::setDTthreads(2)
  +   tinytest::test_package("carts")
 
...[truncated]...
...........   11 tests OK 
  test_estimators.R.............   11 tests OK Error in loadNamespace(x) : there is no package called 'geepack'
  Calls: <Anonymous> ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
  Execution halted

Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.6/carts.Rcheck/00install.out' for details.

Dependency Network

R Observatory began tracking this package on Mar 10, 2026; it first appeared on CRAN Nov 13, 2025. Releases before tracking aren’t shown.