rsmart - Sequential Multiple Assignment Randomized Trials Design and
Analyses
Implements the interim augmented inverse probability
weighted estimator (IAIPWE) for estimating the value of
treatment regimes embedded in sequential multiple assignment
randomized trials (SMARTs). The IAIPWE subsumes both the
inverse probability weighted estimator (IPWE) and the augmented
inverse probability weighted estimator (AIPWE), enabling
inference at interim and final analyses. The package provides
functions for value estimation, sandwich variance computation,
group sequential stopping boundaries, and sample size
determination for multi-stage SMARTs with up to two treatment
options at each stage. See Manschot, Laber, and Davidian (2023)
<doi:10.1111/biom.13854> for additional details.
