Package: fdid 1.0.2

Yiqing Xu

fdid: Factorial Difference-in-Differences

Implements the factorial difference-in-differences (FDID) framework for panel data settings where all units are exposed to a universal event but vary in a baseline factor G. Provides support for various estimators; supports robust, bootstrap, and jackknife variance; returns dynamic, pre/event/post aggregates and raw means; and includes helpers for data preparation and plotting. Methodology follows Xu, Zhao and Ding (2026) <doi:10.1080/01621459.2026.2628343>.

Authors:Yiqing Xu [aut, cre], Rivka Lipkovitz [aut], Enhan Liu [aut]

fdid_1.0.2.tar.gz
fdid_1.0.2.zip(r-4.7)fdid_1.0.2.zip(r-4.6)fdid_1.0.2.zip(r-4.5)
fdid_1.0.2.tgz(r-4.6-any)fdid_1.0.2.tgz(r-4.5-any)
fdid_1.0.2.tar.gz(r-4.7-any)fdid_1.0.2.tar.gz(r-4.6-any)
fdid_1.0.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
fdid/json (API)

# Install 'fdid' in R:

install.packages('fdid', repos = c('https://xuyiqing.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/xuyiqing/fdid/issues

Datasets:

mortality - FDID example dataset

On CRAN:

4.32 score 14 scripts 281 downloads 3 exports 84 dependencies

Last updated from:defdd38995. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	147
source / vignettes	OK	223
linux-release-x86_64	OK	165
macos-release-arm64	OK	111
macos-oldrel-arm64	OK	88
windows-devel	OK	111
windows-release	OK	108
windows-oldrel	OK	112
wasm-release	OK	123

Exports:fdid fdid_list fdid_prepare

Dependencies:abind backports boot broom car carData cli codetools colorspace cowplot cpp11 Deriv DiceKriging digest doBy doFuture dplyr ebal estimatr farver foreach forecast Formula fracdiff future future.apply generics ggplot2 globals glue grf gtable isoband iterators labeling lattice lifecycle listenv lme4 lmtest magrittr MASS Matrix MatrixModels mgcv microbenchmark minqa modelr nlme nloptr nnet numDeriv parallelly pbkrtest pillar pkgconfig purrr quantreg R6 rbibutils RColorBrewer Rcpp RcppArmadillo RcppEigen Rdpack reformulas rlang S7 sandwich scales SparseM stringi stringr survival tibble tidyr tidyselect timeDate urca utf8 vctrs viridisLite withr zoo

Getting Started with fdid

Quick example | References

Rendered fromfdid.Rmdusingknitr::rmarkdown

Last update: 2026-03-12
Started: 2026-03-12

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Factorial Difference-in-Differences Estimation	fdid
Create an `fdid_list` Object	fdid_list
Prepare Data for Factorial Difference-in-Differences Analysis	fdid_prepare
FDID example dataset	mortality
Plot Results from FDID Analysis	plot.fdid
Plot Multiple FDID Estimates	plot.fdid_list
Print Method for FDID Objects	print.fdid
Summary Method for FDID Objects	summary.fdid