ExampleSpatialVxSet: Simulated Spatial Verification Set

In SpatialVx: Spatial Forecast Verification

Simulated Spatial Verification Set

Description

A simulated spatial verification set for use by various examples for this package.

Usage

data(ExampleSpatialVxSet)

Format

The format is: List of 2 $ vx : num [1:50, 1:50] 0 0 0 0 0 0 0 0 0 0 ... $ fcst: num [1:50, 1:50] 0.0141 0 0 0 0 ...

Details

The data here were generated using the sim.rf function from fields (Furrer et al., 2012):

x <- y <- matrix(0, 10, 12) x[2:3,c(3:6, 8:10)] <- 1 y[c(1:2, 9:10),c(3:6)] <- 1

grid <- list(x=seq(0,5,,50), y=seq(0,5,,50)) obj <- Exp.image.cov(grid=grid, theta=0.5, setup=TRUE) x <- sim.rf(obj) x[x < 0] <- 0 x <- zapsmall(x)

y <- sim.rf(obj) y[y < 0] <- 0 y <- zapsmall(y)

References

Reinhard Furrer, Douglas Nychka and Stephen Sain (2012). fields: Tools for spatial data. R package version 6.6.3. http://CRAN.R-project.org/package=fields

Examples

data( "ExampleSpatialVxSet" )
x <- ExampleSpatialVxSet$vx
xhat <- ExampleSpatialVxSet$fcst
par(mfrow=c(1,2))
image.plot(x, col=c("gray",tim.colors(64)))
image.plot(xhat, col=c("gray",tim.colors(64)))

SpatialVx documentation built on May 29, 2024, 9:31 a.m.