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marginaleffects - Predictions, Comparisons, Slopes, Marginal Means, and Hypothesis Tests

Compute and plot predictions, slopes, marginal means, and comparisons (contrasts, risk ratios, odds, etc.) for over 100 classes of statistical and machine learning models in R. Conduct linear and non-linear hypothesis tests, or equivalence tests. Calculate uncertainty estimates using the delta method, bootstrapping, or simulation-based inference. Details can be found in Arel-Bundock, Greifer, and Heiss (2024) <doi:10.18637/jss.v111.i09>.

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16.17 score 656 stars 61 dependents 4.6k scripts 36k downloads

tinyplot - Lightweight Extension of the Base R Graphics System

Lightweight extension of the base R graphics system, with support for automatic legends, facets, themes, and various other enhancements.

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12.09 score 429 stars 19 dependents 287 scripts 13k downloads

etwfe - Extended Two-Way Fixed Effects

Convenience functions for implementing extended two-way fixed effect regressions a la Wooldridge (2023, 2025, 2026) <doi:10.1093/ectj/utad016>, <doi:10.1007/s00181-025-02807-z>, <doi:10.2139/ssrn.7530698>.

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8.98 score 64 stars 1 dependents 138 scripts 961 downloads

parttree - Visualize Simple 2-D Decision Tree Partitions

Visualize the partitions of simple decision trees, involving one or two predictors, on the scale of the original data. Provides an intuitive alternative to traditional tree diagrams, by visualizing how a decision tree divides the predictor space in a simple 2D plot alongside the original data. The 'parttree' package supports both classification and regression trees from 'rpart' and 'partykit', as well as trees produced by popular frontend systems like 'tidymodels' and 'mlr3'. Visualization methods are provided for both base R graphics and 'ggplot2'.

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7.80 score 101 stars 104 scripts 351 downloads

ggfixest - Dedicated 'ggplot2' Methods for 'fixest' Objects

Provides 'ggplot2' equivalents of fixest::coefplot() and fixest::iplot(), for producing nice coefficient plots and interaction plots. Enables some additional functionality and convenience features, including grouped multi-'fixest' object faceting and programmatic updates to existing plots (e.g., themes and aesthetics).

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7.21 score 56 stars 97 scripts 549 downloads

dbreg - Fast Regressions on Database Backends

Leverages database backends to run regressions on very large datasets, which may not fit into R's memory. Various acceleration strategies---e.g., Wong et al. (2021) <doi:10.48550/arXiv.2102.11297> and Arkhangelsky & Imbens (2024) <https://doi.org/10.1093/restud/rdad089>---allow for highly efficient computation, while robust standard errors are computed from sufficient statistics.

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5.74 score 82 stars 30 scripts

ritest - Randomisation Inference Testing

An experimental port of the `ritest` Stata routine by Simon Heß. Fast and user-friendly. Aims to support a variety of model classes once it is fully baked.

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4.37 score 13 stars 18 scripts

lecturenotes - My lecture notes Rmd template

Template for exporting to both HTML and PDF formats. Takes care of various annoyances like missing affiliation headings for PDF, handling of non-standard fonts, correct parsing of interactive content depending on the output format, etc.

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3.80 score 125 stars

lfe2fixest - Converts `lfe::felm()` To The `fixest::feols()` Equivalents

What the package does (one paragraph).

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2.40 score 5 stars 1 scripts