flexBCF

Fast & Flexible Implementation of Bayesian Causal Forests

v1.0.2 · Nov 25, 2025 · GPL (>= 3)

Description

A faster implementation of Bayesian Causal Forests (BCF; Hahn et al. (2020) <doi:10.1214/19-BA1195>), which uses regression tree ensembles to estimate the conditional average treatment effect of a binary treatment on a scalar output as a function of many covariates. This implementation avoids many redundant computations and memory allocations present in the original BCF implementation, allowing the model to be fit to larger datasets. The implementation was originally developed for the 2022 American Causal Inference Conference's Data Challenge. See Kokandakar et al. (2023) <doi:10.1353/obs.2023.0024> for more details.

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CRAN Check Status

13 OK

Show all 13 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	OK	134.4s
r-devel-linux-x86_64-debian-gcc	OK	92.5s
r-devel-linux-x86_64-fedora-clang	OK	188.6s
r-devel-linux-x86_64-fedora-gcc	OK	252.5s
r-devel-windows-x86_64	OK	190s
r-oldrel-macos-arm64	OK	18s
r-oldrel-macos-x86_64	OK	138s
r-oldrel-windows-x86_64	OK	214s
r-patched-linux-x86_64	OK	127.2s
r-release-linux-x86_64	OK
r-release-macos-arm64	OK	16s
r-release-macos-x86_64	OK	60s
r-release-windows-x86_64	OK	192s

Check History

OK 12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 22, 2026

NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.4Mb
  sub-directories of 1Mb or more:
    libs   5.3Mb

NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.5Mb
  sub-directories of 1Mb or more:
    libs   5.4Mb

ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 18, 2026

ERROR r-devel-windows-x86_64

whether package can be installed

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

NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.4Mb
  sub-directories of 1Mb or more:
    libs   5.3Mb

NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.5Mb
  sub-directories of 1Mb or more:
    libs   5.4Mb

NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

NOTE r-oldrel-macos-arm64

installed package size

installed size is  5.4Mb
  sub-directories of 1Mb or more:
    libs   5.3Mb

NOTE r-oldrel-macos-x86_64

installed package size

installed size is  5.5Mb
  sub-directories of 1Mb or more:
    libs   5.4Mb

Dependency Network

Version History

1 tracked

new 1.0.2 Mar 10, 2026

R Observatory began tracking this package on Mar 10, 2026; it first appeared on CRAN Nov 25, 2025. Releases before tracking aren’t shown.