Ignorance (logarithmic) score

Tödter, J., & Ahrens, B. (2012). Generalization of the Ignorance Score: Continuous Ranked Version and Its Decomposition. Monthly Weather Review, 140(6), 2005–2017. https://doi.org/10.1175/MWR-D-11-00266.1

Load data by following the CSTools vignette https://cran.r-project.org/web/packages/CSTools/vignettes/MostLikelyTercile_vignette.html