verification: table.stats.boot – R documentation

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table.stats.boot

Percentile bootstrap for 2 by 2 table

Description

Performs a bootstrap on data from a 2 by 2 contingency table returning verification statistics. Potentially useful in creating error bars for performance diagrams.

Usage

table.stats.boot(CT, R = 100, alpha = 0.05, fudge = 0.01)

Arguments

`CT`	Two by two contingency table. Columns summarize observed values. Rows summarize forecasted values.
`R`	Number of resamples
`alpha`	Confidence intervals.
`fudge`	A numeric fudge factor to be added to each cell of the contingency table in order to avoid division by zero.

Value

2 row matrix with upper and lower intervals for bias, pod, far, ets.

Author(s)

Matt Pocernich

Examples

### example from Roebber. 	
RB1 <- matrix(c(95, 55, 42, 141), ncol = 2)
table.stats.boot(RB1, R = 1000   )

verification

Weather Forecast Verification Utilities

v1.42

GPL (>= 2)

Authors

NCAR - Research Applications Laboratory

Initial release

2015-07-10