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A variety of functions for the best known and most innovative approaches to nonparametric boundary estimation. The selected methods are concerned with empirical, smoothed, unrestricted as well as constrained fits under both separate and multiple shape constraints. They cover robust approaches to outliers as well as data envelopment techniques based on piecewise polynomials, splines, local linear fitting, extreme values and kernel smoothing. The package also seamlessly allows for Monte Carlo comparisons among these different estimation methods. Its use is illustrated via a number of empirical applications and simulated examples.
| Version: | 1.8 |
| Depends: | R (≥ 4.0.0), graphics, stats, utils |
| Imports: | Benchmarking, np, quadprog, Rglpk (≥ 0.6-2), splines |
| Published: | 2023-03-22 |
| DOI: | 10.32614/CRAN.package.npbr |
| Author: | Abdelaati Daouia, Thibault Laurent, Hohsuk Noh |
| Maintainer: | Thibault Laurent <thibault.laurent at univ-tlse1.fr> |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: | yes |
| Citation: | npbr citation info |
| CRAN checks: | npbr results |
| Reference manual: | npbr.pdf |
| Vignettes: |
Non parametric |
| Package source: | npbr_1.8.tar.gz |
| Windows binaries: | r-devel: npbr_1.8.zip, r-release: npbr_1.8.zip, r-oldrel: npbr_1.8.zip |
| macOS binaries: | r-release (arm64): npbr_1.8.tgz, r-oldrel (arm64): npbr_1.8.tgz, r-release (x86_64): npbr_1.8.tgz, r-oldrel (x86_64): npbr_1.8.tgz |
| Old sources: | npbr archive |
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