tscore {ternvis}

Calculate the (Brier) score associated with ternary forecasts and observations

Description

A utility function.

Usage

tscore(p, o, L = diag(c(1, 1, 1))/sqrt(2))

Arguments

p

An n-by-3 matrix of ternary forecasts.

o

An n-by-3 matrix of ternary observations.

L

A 3-by-3 matrix defining the quadratic score being used. (Default corresponds to Brier score.)

Author(s)

Tim Jupp

References

Jupp TE, Lowe R, Stephenson DB, Coelho CAS (2012) On the visualization, verification and recalibration of ternary probabilistic forecasts, Philosophical Transactions of the Royal Society, volume 370, pages 1100-1120.

http://rsta.royalsocietypublishing.org/content/370/1962/1100.full

http://arxiv.org/abs/1103.1303

Examples

data(foot)
tscore(p=foot$p,o=foot$o)