NEWS
qDEA 1.0.0 (2026-04-13)
Initial CRAN Release
- First public release of qDEA package
- Implements quantile Data Envelopment Analysis methods
- Main function
qDEA() for efficiency analysis with multiple orientations
- Support for various returns to scale specifications (CRS, VRS, DRS, IRS)
- Bootstrap bias correction procedures
- Subsample size selection following Simar and Wilson (2011)
- Helper functions for DEA model building and LP solving
- Four example datasets from Cooper, Seiford, and Tone (2006)
- Integration with highs solver for linear programming
Key Features
- Standard DEA and quantile DEA (qDEA) estimation
- Multiple model orientations: input, output, graph, hyperbolic, and directional distance
- Iterative qDEA with convergence testing
- Bootstrap-based bias correction
- Peer identification and projection calculations
- Comprehensive documentation with examples