xskillscore.Contingency.peirce_score
- Contingency.peirce_score()
Returns the Peirce skill score(s) (Hanssen and Kuipers discriminantor true skill statistic) for a contingency table with K categories.
\[PS = \frac{\frac{1}{N}\sum_{i=1}^{K}n(F_i, O_i) - \frac{1}{N^2}\sum_{i=1}^{K}N(F_i)N(O_i)}{1 - \frac{1}{N^2}\sum_{i=1}^{K}N(O_i)^2}\]- Returns:
An array containing the Peirce score(s)
- Return type:
References
https://www.cawcr.gov.au/projects/verification/#Contingency_table