table.stats: Verification statistics for a 2 by 2 Contingency Table

Description

Provides a variety of statistics for a data summarized in a 2 by 2 contingency table.

Usage

table.stats(obs, pred,silent = FALSE)

Arguments

obs

Either a vector of contingency table counts, a vector of binary observations, or a 2 by 2 matrix in the form of a contingency table. (See note below.)

pred

Either null or a vector of binary forecasts.

silent

Should warning statements be surpressed.

Value

tab.outContingency table
TSThreat score a.k.a. Critical success index (CSI)
TS.seStandard Error for TS
PODHit Rate aka probability of detection
POD.seStandard Error for POD
MMiss rate
FFalse Alarm RATE
F.seStandard Error for F
FARFalse Alarm RATIO
FAR.seStandard Error for FAR
HSSHeidke Skill Score
HSS.seStandard Error for HSS
PSSPeirce Skill Score
PSS.seStandard Error for PSS
KSSKuiper's Skill Score
PCPercent correct - events along the diagonal.
PC.seStandard Error for PC
BIASBias
ETSEquitable Threat Score
ETS.seStandard Error for ETS
thetaOdds Ratio
log.thetaLog Odds Ratio
LOR.seStandard Error for Log Odds Ratio
n.hDegrees of freedom for log.theta
orssOdds ratio skill score, aka Yules's Q
ORSS.seStandard Error for Odds ratio skill score
edsExtreme Dependency Score
esd.seStandard Error for EDS
sedsSymmetric Extreme Dependency Score
seds.seStandard Error for Symmetric Extreme Dependency Score
EDIExtreme Dependency Index
EDI.seStandard Error for EDI
SEDISymmetric EDI
SEDI.seStandard Error for SEDI

References

Jolliffe, I.T. and D.B. Stephenson (2003). Forecast verification: a practitioner's guide in atmospheric science. John Wiley and Sons. See chapter 3 concerning categorical events.

Stephenson, D.B. (2000). "Use of `Odds Ratio for Diagnosing Forecast Skill." Weather and Forecasting 15 221-232.

Hogan, R.J., O'Connor E.J. and Illingworth, 2009. "Verification of cloud-fraction forecasts." Q.J.R. Meteorol. Soc. 135, 1494-1511.

Examples

Run this code

DAT<- matrix(c(28, 23, 72, 2680 ), ncol = 2) ## Finley
table.stats(DAT)