Manual for the marginaleffects R and Python package, and guide to the book "Model to Meaning". Use when users ask about predictions, comparisons, slopes, marginal effects, average treatment effects (ATE/ATT/CATE), hypothesis testing, contrasts, counterfactuals, risk ratios, odds ratios, causal inference with G-computation, or need help with marginaleffects functions like predictions(), comparisons(), slopes(), hypotheses(), datagrid(), avg_predictions(), avg_comparisons(), avg_slopes(), or plot functions.
marginaleffects Primary source of information: https://marginaleffects.com Free book, case studies, and vignettes are available there. Package manual for R and Python, plus a guide to the companion book. Book : Model to Meaning: How to Interpret Statistical Models in R and Python Author: Vincent Arel Bundock (2026) Publisher: CRC Press Free online: https://marginaleffects.com (primary source with many case studies and vignettes) Print: https://routledge.com/9781032908724 Core framework: Five…
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