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Forecasters predicting the chances of a future event may disagree due to differing evidence or noise. To harness the collective evidence of the crowd, Ville Satopää (2021) "Regularized Aggregation of One-off Probability Predictions" <https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3769945> proposes a Bayesian aggregator that is regularized by analyzing the forecasters' disagreement and ascribing over-dispersion to noise. This aggregator requires no user intervention and can be computed efficiently even for a large numbers of predictions. The author evaluates the aggregator on subjective probability predictions collected during a four-year forecasting tournament sponsored by the US intelligence community. The aggregator improves the accuracy of simple averaging by around 20% and other state-of-the-art aggregators by 10-25%. The advantage stems almost exclusively from improved calibration. This aggregator – know as "the revealed aggregator" – inputs a) forecasters' probability predictions (p) of a future binary event and b) the forecasters' common prior (p0) of the future event. In this R-package, the function sample_aggregator(p,p0,...) allows the user to calculate the revealed aggregator. Its use is illustrated with a simple example.
| Version: | 0.1.1 |
| Imports: | Rcpp |
| LinkingTo: | Rcpp |
| Suggests: | testthat (≥ 3.0.0) |
| Published: | 2021-05-29 |
| DOI: | 10.32614/CRAN.package.braggR |
| Author: | Ville Satopää [aut, cre, cph] |
| Maintainer: | Ville Satopää <ville.satopaa at gmail.com> |
| License: | GPL-2 |
| Copyright: | (c) Ville Satopaa |
| NeedsCompilation: | yes |
| Citation: | braggR citation info |
| Materials: | README |
| CRAN checks: | braggR results |
| Reference manual: | braggR.pdf |
| Package source: | braggR_0.1.1.tar.gz |
| Windows binaries: | r-devel: braggR_0.1.1.zip, r-release: braggR_0.1.1.zip, r-oldrel: braggR_0.1.1.zip |
| macOS binaries: | r-release (arm64): braggR_0.1.1.tgz, r-oldrel (arm64): braggR_0.1.1.tgz, r-release (x86_64): braggR_0.1.1.tgz, r-oldrel (x86_64): braggR_0.1.1.tgz |
| Old sources: | braggR archive |
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