ipdw (version 0.2-3)

errorGen: Generate interpolation error stats from validation datasets

Description

Generate interpolation error stats from validation datasets

Usage

errorGen(finalraster, validation.spdf, validation.data, plot = FALSE,
  title = "")

Arguments

finalraster

RasterLayer object

validation.spdf

SpatialPointsDataFrame

validation.data

data.frame

plot

logical. Plot comparison?

title

Plot labels

Value

• List of error statistics

Examples

validation.data<-data.frame(rnorm(10,mean=0.2,sd=1))
names(validation.data)<-c("validation")
validation.spdf<-validation.data
validation.data<-as.numeric(unlist(validation.data))
xy<-data.frame(x=c(0:9),y=rep(1,10))
coordinates(validation.spdf)<-xy

m<-matrix(NA,1,10)
out.ras<-raster(m,xmn=0,xmx=ncol(m),ymn=0,ymx=nrow(m))
out.ras[]<-validation.data+rnorm(ncell(out.ras),mean=0.01,sd=0.2)

valid.stats<-errorGen(out.ras,validation.spdf,validation.data,plot=TRUE,title="Validation Plot")
valid.stats