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gfoRmulaICE

Parametric Iterative Conditional Expectation G-Formula

v1.1.1 · Dec 14, 2025 · MIT + file LICENSE

Description

Implements iterative conditional expectation (ICE) estimators of the plug-in g-formula (Wen, Young, Robins, and HernĂ¡n (2020) <doi: 10.1111/biom.13321>). Both singly robust and doubly robust ICE estimators based on parametric models are available. The package can be used to estimate survival curves under sustained treatment strategies (interventions) using longitudinal data with time-varying treatments, time-varying confounders, censoring, and competing events. The interventions can be static or dynamic, and deterministic or stochastic (including threshold interventions). Both prespecified and user-defined interventions are available.

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Dependency Network

Dependencies Reverse dependencies data.table ggplot2 nnet doParallel foreach stringr magrittr dplyr rlang reshape2 speedglm Hmisc gfoRmulaICE

Version History

new 1.1.1 Mar 10, 2026
updated 1.1.1 ← 0.1.1 diff Dec 13, 2025
updated 0.1.1 ← 0.1.0 diff Nov 5, 2025
new 0.1.0 Dec 1, 2024