Description Usage Arguments Value Author(s) References See Also Examples
Function to apply a calibration to a matrix of ternary forecasts.
1 | tcalibrate(tv, p)
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tv |
An object of class tverify, for example produced by |
p |
An n-by-3 matrix of ternary forecasts which will be calibrated according to the calibration function embedded in dat. |
An n-by-3 array of calibrated ternary forecasts.
Tim Jupp
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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | # get football betting data
data(foot)
# get verification info for these data
tv <- tverify(p=foot$p,o=foot$o)
# get a linear calibration based on verification info
lc <- tgetcal(tv)
# consider an uncalibrated forecast p
p <- cbind(0,0,1)
# see where p is mapped by this calibration
pcal <- tcalibrate(lc,cbind(0,0,1))
# plot the uncalibrated forecast
tplot(p)
# plot the calibrated forecast
tplot(pcal,col="blue",newpage=FALSE,bg="transparent")
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