R version 2.7.2 (2008-08-25)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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Type 'demo()' for some demos, 'help()' for on-line help, or
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> # fields, Tools for spatial data
> # Copyright 2004-2007, Institute for Mathematics Applied Geosciences
> # University Corporation for Atmospheric Research
> # Licensed under the GPL -- www.gpl.org/licenses/gpl.html
> 
> 
> library( fields)
Loading required package: spam
Package 'spam' is loaded. Spam version 0.15-2 (2008-09-10).

Type demo( spam) for some demos, help( Spam) for an overview of this package.

 Try help(fields) for an overview of this library 
> 
> # tests of predict.se
> # against direct linear algebra 
> 
> options( echo=FALSE)
testing:  Amatrix vs. predict
    PASSED test at tolerance  1e-08
testing:  Marginal predict.se
    PASSED test at tolerance  1e-08
testing:  Marginal predict.se fixed 
    PASSED test at tolerance  1e-08
testing:  Full covariance predict.se
    PASSED test at tolerance  1e-08
testing:  Marginal standard Cond. Sim.
    PASSED test at tolerance  0.01
testing:  Full covariance standard Cond. Sim.
    PASSED test at tolerance  0.02
testing:  Amatrix vs. predict
    PASSED test at tolerance  1e-08
testing:  Weighted case and exact for ozone2 full 
cov
    PASSED test at tolerance  1e-08
testing:  Conditional simulation marginal se for grid
    PASSED test at tolerance  0.005
all done testing predict.se 
>