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DPI (version 2025.11)

DPI-package: DPI: The Directed Prediction Index for Causal Direction Inference from Observational Data

Description

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The Directed Prediction Index ('DPI') is a quasi-causal inference (causal discovery) method for observational data designed to quantify the relative endogeneity (relative dependence) of outcome (Y) versus predictor (X) variables in regression models. By comparing the proportion of variance explained (R-squared) between the Y-as-outcome model and the X-as-outcome model while controlling for a sufficient number of possible confounders, it can suggest a plausible (admissible) direction of influence from a less endogenous variable (X) to a more endogenous variable (Y). Methodological details are provided at https://psychbruce.github.io/DPI/. This package also includes functions for data simulation and network analysis (correlation, partial correlation, and Bayesian networks).

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Author

Maintainer: Han Wu Shuang Bao baohws@foxmail.com (ORCID)

See Also