R version 2.15.1 (2012-06-22) -- "Roasted Marshmallows"
Copyright (C) 2012 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i386-apple-darwin9.8.0/i386 (32-bit)

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> # fields, Tools for spatial data
> # Copyright 2004-2011, 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
Spam version 0.29-2 (2012-08-17) is loaded.
Type 'help( Spam)' or 'demo( spam)' for a short introduction 
and overview of this package.
Help for individual functions is also obtained by adding the
suffix '.spam' to the function name, e.g. 'help( chol.spam)'.

Attaching package: 'spam'

The following object(s) are masked from 'package:base':

    backsolve, forwardsolve

> 
> # 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  0.015
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  0.001
all done testing predict.se 
> 
> proc.time()
   user  system elapsed 
 13.159   0.036  13.182