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-any)fdid_1.0.2.zip(r-4.6-any)fdid_1.0.2.zip(r-4.5-any)
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:

4.28 score 16 scripts 275 downloads 3 exports 83 dependencies

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

Target	Result	Time
linux-devel	OK	153
source / vignettes	OK	531
linux-release	OK	150
macos-release	OK	128
macos-oldrel	OK	156
windows-devel	OK	100
windows-release	OK	97
windows-oldrel	OK	77
wasm-release	OK	129

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 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