crps.circ {verification} | R Documentation

## CRPS Statistics for circular data

### Description

Computes the circular CRPS when the verifying direction is 'x' and the probabilistic forecast is a von Mises distribution on the circle with mean 'mu' and concentration parameter 'kappa'.

### Usage

    crps.circ(x, mu, kappa )

### Arguments

`x` | A single direction in angles (0 <= x < 2 pi)
`mu` | A single direction in angles (0 <= mu < 2 pi)
`kappa` | A single positive number (kappa >= 0)

### Value

`crps.circ` | Circular crps

### Author(s)

Nick Johnson<nickaj@gmail.com>

### References

Grimit, E.P., T. Gneiting, V.J. Berrocal and N.A. Johnson (2006). The continuous ranked probability score for circular variables and its application to mesoscale forecast ensemble verification. , 132, pp. 1-17, Q.J.R. Meteorolo. Soc..

### Examples

     x                     <- pi/3
      mu                    <- pi/3.2
      kappa                 <- 10000
      ES.VM.Comp2.Max.Kappa <- 1500

    crps.circ( x = pi/3,  mu = pi/3.2, kappa = 10000)

[Package verification version 1.20 Index]