DPI: The Directed Prediction Index
The Directed Prediction Index ('DPI') is a simulation-based method for quantifying the relative endogeneity (relative dependence) of outcome (Y) versus predictor (X) variables in multiple linear 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 potential confounding variables, it suggests a more plausible influence direction from a more exogenous variable (X) to a more endogenous variable (Y). Methodological details are provided at <https://psychbruce.github.io/DPI/>.
| Version: | 2025.8 |
| Depends: | R (≥ 4.0.0) |
| Imports: | glue, crayon, cli, ggplot2, cowplot, qgraph, bnlearn |
| Suggests: | bruceR |
| Published: | 2025-08-20 |
| DOI: | 10.32614/CRAN.package.DPI |
| Author: | Han Wu Shuang Bao 
[aut, cre] |
| Maintainer: | Han Wu Shuang Bao <baohws at foxmail.com> |
| BugReports: | https://github.com/psychbruce/DPI/issues |
| License: | GPL-3 |
| URL: | https://psychbruce.github.io/DPI/ |
| NeedsCompilation: | no |
| Materials: | README, NEWS |
| CRAN checks: | DPI results |
Documentation:
| Reference manual: | DPI.html , DPI.pdf |
Downloads:
| Package source: | DPI_2025.8.tar.gz |
| Windows binaries: | r-devel: DPI_2025.8.zip, r-release: DPI_2025.6.zip, r-oldrel: DPI_2025.6.zip |
| macOS binaries: | r-release (arm64): DPI_2025.8.tgz, r-oldrel (arm64): DPI_2025.6.tgz, r-release (x86_64): DPI_2025.8.tgz, r-oldrel (x86_64): DPI_2025.8.tgz |
| Old sources: | DPI archive |
Linking:
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