2012-12-18  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (print.cv.georob, print.summary.cv.georob): return invisible(x)
* georob.S3methods.R (print.georob, print.summary.georob): return invisible(x)
* variogram.R (print.summary.sample.variogram, print.fitted.variogram)
(print.summary.fitted.variogram): return invisible(x)


2012-12-18  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (model.frame.georob, model.matrix.georob)
(nobs.georob): new respective methods for class "georob"


2012-12-18  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (plot.sample.variogram, plot.georob): correction of error in
processing col and pch arguments


2012-12-22  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (logLik.georob): computation of unrestricted loglikelihood
(deviance.georob): new function


2013-01-19  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob): computation of lag vectors


2013-01-20  Andreas Papritz  <papritz@env.ethz.ch>

* NAMESPACE (--): changed imports for constrainedKriging and spatialCovariance
* DESCRIPTION (--): changed imports for constrainedKriging and spatialCovariance
* internal.functions.Rd (--): new help file for unexported functions


2013-04-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, georob.control): new names for robustness weights
* georob.predict.R (predict.georob): new names for robustness weights
* georob.private.functions.R (compute.covariances, update.betahat.bhat, estimate.betahat.bhat, compute.estimating equations, georob.fit): new names for robustness weights
* georob.S3methods.R (ranef.georob, rstandard.georob, summary.georob, print.summary.georob): new names for robustness weights
* georob.cv.R (cv.georob): changes for parallelization on windows os


2013-04-29  Andreas Papritz  <papritz@env.ethz.ch>

* georob_example.R: correction of argument names in examples


2013-05-12  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (plot.sample.variogram): correction of handling optional arguments


2013-05-14  Andreas Papritz  <papritz@env.ethz.ch>

* DESCRIPTION: attaching instead of importing functionS of package parallel
* NAMESPACE: attaching instead of importing functionS of package parallel



2013-05-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob): correct handling of missing observations
* georob.exported.functions.R (georob): improved way to handle missing observations and to construct model.frame
* georob.predict.R (predict.georob): correct handling of missing observations
* georob.S3methods.R (georob.residuals): new argument "terms"
* georob.S3methods.R (ranef.georob, residuals.georob, rstandard.georob, deviance.georob): correct handling of missing observations
* variogram.R (plot.georob): correct handling of missing observations


2013-05-24  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob): separate initial variogram parameters for each cross-validation set


2013-05-31  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (ranef.georob, residuals.georob,rstandard.georob,deviance.georob): correct handling of missing observations
* georob.S3methods.R (deviance.georob, ranef.georob, rstandard.georob, summary.georob): revised expansion of covariance matrices


2013-06-06  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.function.R (georob, georob.control): handling fixed effects model matrices with rank < ncol(x) for robust estimation
* georob.private.function.R (prepare.likelihood.calculations, compute.estimating.equations, negative.restr.loglikelihood, gradient.negative.restricted.loglikelihood, georob.fit) : solving estimating equations for xi
* georob.S3methods.R ranef.georob, rstandard.georob) : solving estimating equations for xi
* georob.private.function.R (estimate.xihat, prepare.likelihood.calculations, compute.estimating.equations, negative.restr.loglikelihood, gradient.negative.restricted.loglikelihood, georob.fit): handling fixed effects model matrices with rank < ncol(x) for robust estimation


2013-06-11  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.function.R (georob): handling fixed effects model matrices with rank < ncol(x) for non-robust estimation
* georob.private.function.R (estimate.xihat, prepare.likelihood.calculations, compute.estimating.equations, negative.restr.loglikelihood, gradient.negative.restricted.loglikelihood, georob.fit): handling fixed effects model matrices with rank < ncol(x) for non-robust estimation


2013-06-12  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (all functions): substituting [["x"]] for $x in all lists
* georob.exported.functions.R (all functions): substituting [["x"]] for $x in all lists
* georob.lgnpp.R (all functions): substituting [["x"]] for $x in all lists
* georob.predict.R (all functions): substituting [["x"]] for $x in all lists
* georob.private.functions.R (all functions): substituting [["x"]] for $x in all lists
* georob.S3methods.R (all functions): substituting [["x"]] for $x in all lists
* variogram.R (all functions): substituting [["x"]] for $x in all lists


2013-07-02  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, param.transf, fwd.transf, dfwd.transf, bwd.transf): new transformation of rotation angles
* georob.private.functions.R (georob.fit, prepare.likelihood.calculations): new transformation of rotation angles
* georob.S3methods.R (print.georob, summary.georob): new transformation of rotation angles
* georob.cv.R (cv.georob): passing initial values of aniso and fit.aniso to georob via update


2013-07-05  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob): return "variogram.model" as part of 'fit' component


2013-07-09  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (georob.fit): catching errors occuring when fitting anisotropic variogram models with default anisotropy parameters


2013-07-10  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob): computing robust initial variogram parameter estimates by minimizing sum of squared estimating equations
* georob.private.functions.R (georob.fit, compute.estimating.equations): computing robust initial variogram parameter estimates by minimizing sum of squared estimating equations


2013-07-12  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, georob.control, bbsolve.control): solving estimating equations by BBsolve{BB} (in addition to nleqlsv)
* georob.private.functions.R (compute.estimating.equations, compute.expanded.estimating.equations, estimating.eqations.xihat, estimate.xihat, georob.fit, gradient.negative.restricted.loglikelihood, negative.restr.loglikelihood, prepare.likelihood.calculations): solving estimating equations by BBsolve{BB} (in addition to nleqlsv)


2013-09-06  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, georob.control, bbsolve.control): code for solving estimating equations by BBsolve{BB} commented out (released to CRAN as version 0.1-1)
* georob.private.functions.R (compute.estimating.equations, compute.expanded.estimating.equations, estimating.eqations.xihat, estimate.xihat, georob.fit, gradient.negative.restricted.loglikelihood, negative.restr.loglikelihood, prepare.likelihood.calculations): code for solving estimating equations by BBsolve{BB} commented out (released to CRAN as version 0.1-1)


2014-01-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (prepare.likelihood.calculations): correct comparison of trial parameter values with safe.param


2014-02-06  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions (georob): correcting error that occurred for rank-deficient design matrices
* georob.private.functions.R (gerorob.fit): correcting error that occurred for rank-deficient design matrices


2014-02-11  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob): suppressing warnings caused by use of version 2 function of package RandomFields
* georob.private.functions.R (gcr, compute.semivariance): suppressing warnings caused by use of version 2 function of package RandomFields


2014-02-19  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions (georob): changes for now exported function robMD{robustbase}, correcting error when model contains offset
* georob.private.functions.R (gerorob.fit): correcting error when model contains offset
* georob.predict.R (predict.georob): correcting error when model contains offset
* georob.S3methods.R (waldtest.georob): handling verbose output when re-fitting model


2014-02-21  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob): changes for dealing with problem when factor are very unbalanced


2014-02-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (deviance.georob): computing 'pseudo' deviance for robustly fitted models


2014-03-01  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob, drop1.georob, extractAIC.georob, step, step.default, step.georob): functions for stepwise selection of fixed-effects terms


2014-03-05  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (compute.semivariance, gar): changes for RandomFields version 3
* georob.predict.R (predict.georobcd R.	): changes for RandomFields version 3
* georob.S3methods.R (add1.georob, drop1.georob, step.georob): changes in functions for stepwise selection of fixed-effects terms
* georob.cv.R (cv.georob): catching attempt to re-estimate variogram parameters when all parameters in object are fixed


2014-03-12  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob, deviance.georob, drop1.georob, extractAIC.georob, logLik.georob, step.georob): changes in functions for parallelized stepwise selection of fixed-effects terms


2014-04-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob): correcting error when newdata contains data locations


2014-04-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob, drop1.georob, step.georob): changes in functions for reducing memory demand


2014-05-08  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (plot.georob,lines.georob): changes for plotting covariances and correlations


2014-05-15  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob): changes for version 3 of RandomFields
* georob.exported.functions.R (georob, georob.control, param.transf, param.names, param.bounds): changes for version 3 of RandomFields
* georob.private.functions.R (gcr, prepare.likelihood.calculations, dcorr.dparam, compute.semivariance): changes for version 3 of RandomFields
* georob.S3methods.R (waldtest.georob, add1.georob, drop1.georob): changes for version 3 of RandomFields
* variogram.R (fit.variogram.model): changes for version 3 of RandomFields


2014-05-15  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob) changes for selecting intitial.param and initial.method


2014-05-28  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (georob.cv) catching error when all variogram parameters are fixed
* georob.exported.functions.R (georob, param.bounds, param.names) minor changes in arguments
* georob.predict.R (predict.georob) further changes for version 3 of RandomFields
* georob.private.functions.R (georob.fit) change in check for initial variogram parameter values
* variogram.R (fit.variogram.model) minor changes in arguments


2014-06-02  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob) partial matching of names of variogram parameters
* georob.exported.functions.R (georob.control) new default value for argument irwls.reltol


2014-08-18  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (georob) parallelized matrix multiplication
* georob.exported.functions.R (georob, georob.control, nleqslv.control, optim.control, parallel.control, pmm, rq.control) parallelized matrix multiplication, ML estimation
* georob.private.functions.R (compute.covariances, compute.estimating.equations, estimating.eqations.xihat, estimate.xihat, f.aux.eeq, f.aux.gradient.nll, f.aux.Q, f.aux.Valpha, f.stop.cluster, gcr, gradient.negative.restricted.loglikelihood, negative.restr.loglikelihood, prepare.likelihood.calculations, georob.fit) parallelized matrix multiplication, ML estimation
* georob.predict.R (predict.georob, predict.georob.control, cv.georob)  parallelized matrix multiplication, renamed and restructured arguments
* georob.S3methods.R (waldtest.georob, add1.georob, drop1.georob. step.georob) improved computational performance


2014-08-19  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (compute.covariances) correcting error in computation of covariance of regression residuals
* georob.S3methods.R (rstandard.georob) correcting error when computing covariance of residuals


2014-08-26  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob) changes for returning and printing ml.method
* georob.S3methods.R (summary.georob, print.summary.georob) changes for returning and printing ml.method
* georob.S3methods.R (step.georob) correcting error for stepwise covariate selection with non-fixed variogram parameters


2015-04-03  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (compute.covariances) correcting error in computing result.new[["cov.bhat"]] for full.cov.bhat == FALSE
* georob.private.functions.R (f.aux.eeq) changes to optimize computing effort
* georob.predict.R (predict.georob) changes to optimize computing effort


2015-04-13  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob) minor changes if models are not re-estimated; scatterplot smoothing in plots
* georob.cv.R (plot.cv.georob) smoothing of scatter plots
* georob.exported.functions.R (georob.control, param.transf, fwd.transf, dfwd.transf, bwd.transf) extended variogram parameter transformations
* georob.exported.functions.R (pmm) small changes in f.aux
* georob.private.functions.R (compute.estimating.equations) renamed to estimating.equations.thetahat
* georob.private.functions.R (prepare.likelihood.calculations,georob.fit) extended variogram parameter transformations


2015-03-16  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (profile, proflik.georob, profile.likfit) function for computing profile likelihood
* georob.S3methods.R (residuals.georob, rstandard.georob, ) residuals of huberized observations
* georob.S3methods.R (logLik, deviance) computing 'pseudo' likelihood for REML case
* georob.exported.functions.R (georob) own function for psi
* georob.private.functions.R (estimating.equations.thetahat, georob.fit, gradient.negative.restricted.loglikelihood, negative.restr.loglikelihood, prepare.likelihood.calculations) elimination of unused variables
* georob.private.functions.R (f.psi.function) own function for psi


2015-04-07  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (param.transf, fwd.transf, dfwd.transf, bwd.transf) changes in transformation of anisotropy parameters
* georob.private.functions.R (georob.fit, prepare.likelihood.calculations) changes in transformation of anisotropy parameters
* georob.S3methods.R (summary.georob,) changes in transformation of anisotropy parameters
* georob.S3methods.R (waldtest.georob) change of default for test statistic
* variogram.R (sample.variogram, fit.variogram.model, summary.fitted.variogram, print.summary.fitted.variogram) correcting error when computing directional variograms


2015-06-30  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, control.georob, control.nleqslv, control.optim, control.pmm, control.rq) functions and arguments renamed
* georob.private.functions.R (compute.covariances) changes for improving efficiency
* georob.private.functions.R (update.xihat) solving linear system of equation by cholesky decomposition
* georob.private.functions.R (estimate.xihat) new method to determine convergence
* predict.georob.R (crpsnorm, crpspd.resp.rob, ppd.resp.rob, predict.georob, qpd.resp.rob, var.pd.resp.rob) new functions and modifications for robust prediction of response
* predict.georob.R (control.predict.georob) function renamed
* georob.lgnpp.R (lgnpp) modifications for missing components 'lower' and 'upper'
* georob.cv.R (cv.georob, plot.cv.georob, summary.cv.georob, validate.predictions) modifications for robust prediction of response


2015-07-17  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob) excluding blocks of observations
* georob.exported.functions.R (georob, control.georob) change of control of computation of hessian for Gaussian (RE)ML, changes for singular design matrices, nlminb optimizer added (new function control.nlminb)
* georob.private.functions.R (covariances.fixed.random.effects, estimate.zhat, update.zhat, estimating.equations.zhat, f.aux.gcr, f.aux.gamma, likelihood.calculations, f.aux.Qstar, negative.loglikelihood, gradient.negative.loglikelihood, f.aux.gradient.nll, f.aux.gradient.npll, f.reparam.fwd, f.reparam.bkw, partial.derivatives.variogram, f.aux.RSS, georob.fit) functions renamed, Gaussian (RE)ML estimation for reparametrized variogram, new functions (f.aux.gradient.npll, f.reparam.fwd, f.reparam.bkw, f.aux.RSS)
* georob.private.functions.R (estimating.equantions.thetahat, f.aux.eeq) new function interface, improved efficiency


2015-07-22  Andreas Papritz  <papritz@env.ethz.ch>
* georob.cv.R (cv.georob) inactivation of modifications for robust prediction of response
* predict.georob.R (predict.georob) inactivation of modifications for robust prediction of response


2015-07-22  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (print.summary.georob) change in number of printed digits


2015-07-23  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob, drop1.georob, step.georob) changes for dropping terms from model with fixed variogram parameters
* georob.private.functions.R (f.aux.gcr, likelihood.calculations, estimating.equations.thetahat, gradient.negative.loglikelihood, georob.fit, f.aux.Valphaxi) Valpha (correlation matrix without spatial nugget) no longer stored but computed from Valphaxi when needed


2015-07-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (estimating.equations.thetahat, gradient.negative.loglikelihood, negative.loglikelihood, f.aux.eeq, f.aux.gradient.nll, f.aux.gradient.npll)
* georob.exported.functions.R (control.georob, profilelogLik) new argument reparam for controlling variance estimation for Gaussian (RE)ML


2015-07-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (estimating.equations.thetahat, gradient.negative.loglikelihood) changes for elimination of parallelized computation of gradient or estimating equations
* georob.exported.functions.R (control.parallel) changes for elimination of parallelized computation of gradient or estimating equations


2015-08-19  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (covariances.fixed.random.effects, estimating.equations.thetahat, georob.fit, f.psi.function) changes for computing covariances under long-tailed distribution of epsilon
* georob.exported.functions.R (georob, control.georob) changes for computing covariances under long-tailed distribution of epsilon
* georob.private.functions.R (rstandard.georob) correcting error when computing covariances of residuals


2015-08-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob) correcting error in processing output


2015-08-28  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob)  computation of hessian suppressed
* georob.S3methods.R (add1.georob, drop1.georob, waldtest.georob) computation of hessian suppressed; elimination of argument "fixed" from wildest.georob
* georob.exported.functions.R (georob, control.georob) control arguments newly organized
* georob.private.functions.R (georob.fit) correcting error when using georob.object


2015-12-02  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob)  catching errors occurring during parallel model fits
* georob.cv.R (validate.predictions)  checking whether mandatory arguments were provided
* georob.exported.functions.R (default.aniso, default.fit.param, default.fit.aniso, georob, control.georob) new way to control which variogram parameters are fitted
* georob.predict.R (predict.georob) catching errors occurring during parallel computations
* variogram.R (sample.variogram, sample.variogram.default, sample.variogram.formula, sample.variogram.gerob) generic and methods for computing sample variogram
* variogram.R (fit.variogram.model) checking mandatory arguments, issuing warnings
* variogram.R (plot.georob) changes for Tukey-Anscombe, QQnorm plots and for plotting variograms
* georob.private.functions.R (f.aux.gcr,estimating.equations.theta, negative.loglikelihood, gradient.negative.loglikelihood, georob.fit) issuing warnings

 

2015-12-02  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (fit.variogram.model) correcting error in setting default values for fit.param
 

2015-12-25  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (plot.georob) changes for residual diagnostic plots
 

2015-12-29  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (plot.cv.georob) minor changes for adding plots to existing diagnostics graphics


2016-05-22  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob, drop1.georob, step.georob) correction of error and extended functionality for refitting variorum parameters or keeping them fixed, changes for better computational efficiency


2016-05-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (add1.georob), drop1.georob) diagnostics about convergence


2016-05-27  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob) allow recursive calls of mclapply


2016-07-15  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods (waldtest.georob) optimization
* georob.exported.functions.R (profilelogLik) optimization* georob.exported.functions.R (profilelogLik) optimization
* georob.exported.functions.R (gearbox) allowing use of lmrob for computing initial fixed effects for rank-deficient model matrix

2016-07-21  Andreas Papritz  <papritz@env.ethz.ch>

* georob.cv.R (cv.georob) changes for parallel computations
* georob.exported.functions.R (georob, pmm, control.pcmp, profilelogLik) changes for parallel computations
* georob.predict.R (control.predict.georob, predict.georob, f.robust.uk) changes for parallel computations
* georob.private.functions.R (covariances.fixed.random.effects, estimate.zhat, f.aux.gcr, likelihood.calculations, estimating.equations.theta, negative.loglikelihood, gradient.negative.loglikelihood, georob.fit, f.aux.eeq, f.aux.gradient.nll, f.aux.gradient.npll, f.aux.Qstar, f.aux.Valphaxi) changes for parallel computations
* georob.S3methods.R (ranef.georob, add1.georob, drop1.georob, step.georob) changes for parallel computations
* georob.S3methods.R (fixef.georob) correcting wrong component name


2016-07-22  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob) SpatialPoints, SpatialPixels and SpatialGrid as newdata objects
* georob.private.functions.R (georob.fit) corrected names of gradient components


2016-07-25  Andreas Papritz  <papritz@env.ethz.ch>

* cv.georob.R (plot.cv.georob) added line color and type for scatterplot smooths


2016-08-22  Andreas Papritz  <papritz@env.ethz.ch>

* cv.georob.R (cv.georob) correcting error when computing  standard errors of cv kriging predictions
* cv.georob.R (cv.georob) changes for nested variogram models
* georob.exported.functions.R (georob, control.georob, profilelogLik) changes for nested variogram models
* georob.exported.functions.R (bwd,transf) corrections for logitx if argument is +/-Inf
* georob.lgnpp.R (lgnpp) changes for nested variogram models
* georob.predict.R (predict.georob, f.robust.uk) changes for nested variogram models
* georob.private.functions.R (f.aux.gcr, likelihood.calculations, partial.derivatives.variogram, estimating.equations.theta, negative.loglikelihood, gradient.negative.loglikelihood, georob.fit, f.aux.eeq, f.aux.gradient.nll, f.aux.gradient.npll, f.aux.Valphaxi, f.reparam.fwd, f.reparam.bwd, f.aux.tf.param.fwd, f.aux.print.gradient, f.call.set_x_to_value, f.call.set_allfitxxx_to_false, f.call.set_onefitxxx_to_value, f.call.set_allxxx_to_fitted_values, f.call.set_onexxx_to_value) changes for nested variogram models
* georob.S3methods.R (print.georob, ranef.georob, rstandard.georob, summary.georob, print.summary.georob, waldtest.georob, logLik.georob, deviance.georob, extractAIC.georob, f.aux.add1.drop1, add1.georob, drop1.georob, step.georob) changes for nested variogram models
* variogram.R (fit.variogram.model, print.fitted.variogram, summary.fitted.variogram, print.summary.fitted.variogram, plot.georob, lines.georob) changes for nested variogram models


2016-08-24  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (control.georob) change of default for argument error.family.cov.residuals
* variogram.R (plot.sample.variogram) new argument lty


2016-09-08  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (likelihood.calculations) correcting error for printing trial parameter values if they exceed safe bounds


2016-11-29  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (likelihood.calculations,georob.fit, partial.derivatives.variogram) correcting error in 3d rotation matrix for geometrically anisotropic variograms
* variogram.R (fit.variogram.model) correcting error in 3d rotation matrix for geometrically anisotropic variograms


2016-11-28  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (georob.fit) checking ml.method and presence of intercept for intrinsic models
* georob.predict.R (predict.georob,f.robust.uk) correcting error when computing predictions for intrinsic variograms


2016-11-29  Andreas Papritz  <papritz@env.ethz.ch>

* variogram.R (fit.variogram.model) correcting error in 3d rotation matrix for geometrically anisotropic variograms


2017-02-24  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (georob.fit) warning for negative definite hessian


2017-05-09  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (georob, control.rq) small changes and error correction in interface to rq() for computing robust initial values


2017-07-26  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (georob.fit) changes to allow non-zero snugget if there are no replicated observations


2017-10-20  Andreas Papritz  <papritz@env.ethz.ch>

* georob.S3methods.R (fixef.georob) new functions coef.georob and print.coef.georob


2017-10-24  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob) error message if names of coordinates in object and newdata are not the same


2018-01-05  Andreas Papritz  <papritz@env.ethz.ch>

* georob.exported.functions.R (pmm, profilelogLik) improved memory management in parallel computations
* georob.cv.R (cv.georob) improved memory management in parallel computations
* georob.predict.R (predict.georob) improved memory management in parallel computations
* georob.private.functions.R (f.aux.gcr) improved memory management in parallel computations
* georob.S3methods.R (step.georob, add1.georob, drop1.georob) improved memory management in parallel computations


2018-01-17  Andreas Papritz  <papritz@env.ethz.ch>

* georob.private.functions.R (f.call.set_allxxx_to_fitted_values) variogram.model is also updated


2018-01-24  Andreas Papritz  <papritz@env.ethz.ch>

* georob.predict.R (predict.georob) new optional arguments for specifying a variogram model different from the one contained in object.
* georob.simulation.R (condsim.georob, control.condsim.georob) new functions for (un)conditional simulation

