fields (version 5.02)

predict.se: Standard errors of predictions

Description

Calculates the standard error of predictions. This is usually the fitted object from a function estimate such as from Krig or Tps.

Usage

predict.se(object, ...)

Value

A vector of standard errors for the predicted values.

Details

This function is generic and will call the appropriate function to calculate the standard errors for the object class. The prediction standard error is for the estimated function or parameters (a mean value) not for the prediction of a new observation.

See Also

predict, predict.surface.se, predict.se.Krig

Examples

fit<-Krig(ozone$x,ozone$y, Covariance="Matern",theta=50, smoothness=1)
  predict.se(fit)                             # std errors of predictions 
#
# create a grid of points  
  xg<- make.surface.grid(
        list(East.West=seq(-15,15,,20),North.South=seq(-20,20,,20) ) ) 
  out<- predict.se(fit,xg)
  image.plot( as.surface( xg, out))