Robust Geostatistical Analysis of Spatial Data

Provides functions for efficiently fitting linear models with spatially correlated errors by robust and Gaussian (Restricted) Maximum Likelihood and for computing robust and customary point and block external-drift Kriging predictions, along with utility functions for variogram modelling in ad hoc geostatistical analyses, model building, model evaluation by cross-validation, (conditional) simulation of Gaussian processes, unbiased back-transformation of Kriging predictions of log-transformed data.


News

2012-12-14 georob Version 0.1-0 released! 2013-09-06 georob Version 0.1-1 released to CRAN 2014-05-15 georob Version 0.1-3 released to CRAN, new features: stepwise selection of covariates for trend model, changes for version 3 of package RandomFields 2014-06-02 georob Version 0.1-4 released to CRAN 2014-08-28 georob Version 0.1-5 released to CRAN, new features: Gaussian ML estimation, parallelised matrix multiplication 2015-09-02 georob Version 0.2-1 released to CRAN, new features: Gaussian (RE)ML of re-parametrized variogram; new function for computing profile likelihood, multiple changes for reducing computational effort; optional computation of covariances for long-tailed errors 2015-12-02 georob Version 0.2-2 released to CRAN, new features: better error diagnostics, generic and methods for computing sample variograms, new functions to set default values for variogram parameters, extended plot method for class georob with residual diagnostic plots 2016-03-01 georob Version 0.2-3 released to CRAN, new features: correcting error in setting default values for fit.param, minor changes for diagnostics plots 2016-07-26 georob Version 0.2-4 released to CRAN, new features: vignette with a tutorial and manual; changes in interface of georob and for parallel computations. 2016-09-06 georob Version 0.3-0 released to CRAN, new features: estimating parameters of "nested" variogram models. 2016-09-06 georob Version 0.3-1 released to CRAN, correction of minor bug in internal function. 2016-11-28 georob Version 0.3-2 released to CRAN, correction of errors in 3d anisotropic variogram modelling and for computing kriging predictions for models with intrinsic variograms. 2017-01-24 georob Version 0.3-3 released to CRAN, correction of minor bug for fitting 3d anisotropic variogram models to sample variograms. 2017-05-09 georob Version 0.3-4 released to CRAN, correction of minor bug for computing robust initial values of regression coefficients by rq(). 2017-10-20 georob Version 0.3-5 released to CRAN, new function coef(). 2018-01-26 georob Version 0.3-6 released to CRAN, new function condsim() for (un)conditional simulation from a fitted georob object. 2018-08-27 georob Version 0.3-6 released to CRAN, minor change of arguments of functions for model building. 2018-11-25 georob Version 0.3-7 released to CRAN, minor change of function for (conditional) simulation. 2019-03-29 georob Version 0.3-8 released to CRAN, changes required by new version 3.3.6 of package RandomFields. 2019-04-07 georob Version 0.3-9 released to CRAN, correction of error when computing semivariances for anisotropic variograms introduced in Version 0.3-8; possibility to choose optimizer in fit.variogram.model()

Reference manual

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install.packages("georob")

0.3-13 by Andreas Papritz, 6 days ago


Browse source code at https://github.com/cran/georob


Authors: Andreas Papritz [cre, aut] , Cornelia Schwierz [ctb]


Documentation:   PDF Manual  


Task views: Robust Statistical Methods, Analysis of Spatial Data


GPL (>= 2) | LGPL (>= 2) license


Imports abind, constrainedKriging, fields, lmtest, methods, nlme, nleqslv, quantreg, RandomFields, robustbase

Depends on graphics, parallel, snowfall, sp, stats, utils

Suggests gstat, multcomp, lattice


Suggested by pedometrics.


See at CRAN