# Augments 'ASReml-R' in Fitting Mixed Models and Packages Generally in Exploring Prediction Differences

## Documentation for package ‘asremlPlus’ version 4.2-21

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

A B C E F G I L N O P R S T V W

asremlPlus-package | Augments 'ASReml-R' in Fitting Mixed Models and Packages Generally in Exploring Prediction Differences

## -- A --

addBacktransforms | Adds or recalculates the backtransforms component of an 'alldiffs.object'.
addBacktransforms.alldiffs | Adds or recalculates the backtransforms component of an 'alldiffs.object'.
addrm.terms.asreml | Deprecated Functions in the Package asremlPlus
addrm.terms.asrtests | Deprecated Functions in the Package asremlPlus
allDifferences | Using supplied predictions and standard errors of pairwise differences or the variance matrix of predictions, forms all pairwise differences between the set of predictions, and p-values for the differences.
allDifferences.data.frame | Using supplied predictions and standard errors of pairwise differences or the variance matrix of predictions, forms all pairwise differences between the set of predictions, and p-values for the differences.
alldiffs | Deprecated Functions in the Package asremlPlus
alldiffs-class | Description of an alldiffs object
alldiffs.object | Description of an alldiffs object
angular | Applies the angular transformation to proportions.
angular.mod | Applies the modified angular transformation to a vector of counts.
as.alldiffs | Forms an 'alldiffs.object' from the supplied predictions, along with those statistics, associated with the predictions and their pairwise differences, that have been supplied.
as.asrtests | Forms an asrtests object that stores (i) a fitted asreml object, (ii) a pseudo-anova table for the fixed terms and (iii) a history of changes and hypthesis testing used in obtaining the model.
as.predictions.frame | Forms a 'predictions.frame' from a 'data.frame', ensuring that the correct columns are present.
asremlPlus | Augments 'ASReml-R' in Fitting Mixed Models and Packages Generally in Exploring Prediction Differences
asremlPlus-deprecated | Deprecated Functions in the Package asremlPlus
asremlPlusTips | The randomly-presented, startup tips.
asrtests | Forms an asrtests object that stores (i) a fitted asreml object, (ii) a pseudo-anova table for the fixed terms and (iii) a history of changes and hypthesis testing used in obtaining the model.
asrtests-class | Description of an asrtests object
asrtests.object | Description of an asrtests object

## -- B --

bootREMLRT | Uses the parametric bootstrap to calculate the p-value for a REML ratio test to compare two models.
bootREMLRT.asreml | Uses the parametric bootstrap to calculate the p-value for a REML ratio test to compare two models.

## -- C --

changeModelOnIC | Uses information criteria to decide whether to change an already fitted model.
changeModelOnIC.asrtests | Uses information criteria to decide whether to change an already fitted model.
changeTerms | Adds and drops the specified sets of terms from one or both of the fixed or random model and/or replaces the residual (rcov) model with a new model.
changeTerms.asrtests | Adds and drops the specified sets of terms from one or both of the fixed or random model and/or replaces the residual (rcov) model with a new model.
choose.model.asreml | Deprecated Functions in the Package asremlPlus
choose.model.asrtests | Deprecated Functions in the Package asremlPlus
chooseModel | Determines the set of significant terms using p-values and records the tests performed in a 'data.frame', taking into account the marginality relations of terms.
chooseModel.asrtests | Determines and records the set of significant terms using an 'asrtests.object', taking into account the hierarchy or marginality relations of the terms.
chooseModel.data.frame | Determines the set of significant terms from results stored in a 'data.frame', taking into account the marginality relations of terms and recording the tests used in a 'data.frame'.

## -- E --

estimateV | Forms the estimated variance, random or residual matrix for the observations from the variance parameter estimates.
estimateV.asreml | Forms the estimated variance, random or residual matrix for the observations from the variance parameter estimates.

## -- F --

facCombine | Combines several factors into one in the components of an 'alldiffs.object'
facCombine.alldiffs | Combines several factors into one in the components of an 'alldiffs.object'
facRecode | Recodes factor levels using values in a vector. The values in the vector do not have to be unique.
facRecode.alldiffs | Recodes factor levels using values in a vector. The values in the vector do not have to be unique.
facRename | Renames 'factor's in the 'prediction' component of an 'alldiffs.object'.
facRename.alldiffs | Renames 'factor's in the 'prediction' component of an 'alldiffs.object'.

## -- G --

getASRemlVersionLoaded | Finds the version of asreml that is loaded and returns the initial characters in version.
getFormulae | Gets the formulae from an asreml object.
getFormulae.asreml | Gets the formulae from an asreml object.
getTestPvalue | Gets the p-value for a test recorded in the test.summary data.frame of an 'asrtests.object'
getTestPvalue.asrtests | Gets the p-value for a test recorded in the test.summary data.frame of an 'asrtests.object'

## -- I --

info.crit | Deprecated Functions in the Package asremlPlus
info.crit.asreml | Deprecated Functions in the Package asremlPlus
infoCriteria | Computes AIC and BIC for models.
infoCriteria.asreml | Computes AIC and BIC for models.
infoCriteria.list | Computes AIC and BIC for models.
is.alldiffs | Tests whether an object is of class alldiffs
is.asrtests | Tests whether an object is of class asrtests
is.predictions.frame | Tests whether an object is of class predictions.frame
iterate | Subject the fitted 'asreml.obj' stored in an 'asrtests.object' to further iterations of the fitting process.
iterate.asrtests | Subject the fitted 'asreml.obj' stored in an 'asrtests.object' to further iterations of the fitting process.

## -- L --

Ladybird.dat | Data for an experiment to investigate whether ladybirds transfer aphids
linTransform | Calculates a linear transformation of the predictions stored in an 'alldiffs.object'.
linTransform.alldiffs | Calculates a linear transformation of the predictions stored in an 'alldiffs.object'.
loadASRemlVersion | Ensures that a specific version of 'asreml' is loaded.

## -- N --

newfit | Refits an asreml model with modified model formula using either a call to 'update.asreml' or a direct call to 'asreml'.
newfit.asreml | Refits an asreml model with modified model formula using either a call to 'update.asreml' or a direct call to 'asreml'.
newrcov.asrtests | Deprecated Functions in the Package asremlPlus
num.recode | Recodes the unique values of a vector using the values in a new vector.

## -- O --

Oats.dat | Data for an experiment to investigate nitrogen response of 3 oats varieties

## -- P --

permute.square | Permutes the rows and columns of a square matrix.
permute.to.zero.lowertri | Permutes a square matrix until all the lower triangular elements are zero.
plotPredictions | Plots the predictions for a term, possibly with error bars.
plotPredictions.data.frame | Plots the predictions for a term, possibly with error bars.
plotPvalues | Plots a heat map of p-values for pairwise differences between predictions.
plotPvalues.alldiffs | Plots a heat map of p-values for pairwise differences between predictions.
plotPvalues.data.frame | Plots a heat map of p-values for pairwise differences between predictions.
plotVariofaces | Plots empirical variogram faces, including envelopes, from supplied residuals as described by Stefanova, Smith & Cullis (2009).
plotvariofaces.asreml | Deprecated Functions in the Package asremlPlus
plotVariofaces.data.frame | Plots empirical variogram faces, including envelopes, from supplied residuals as described by Stefanova, Smith & Cullis (2009).
power.transform | Deprecated Functions in the Package asremlPlus
powerTransform | Performs a combination of a linear and a power transformation on a variable. The transformed variable is stored in the 'data.frame data'.
pred.present.asreml | Deprecated Functions in the Package asremlPlus
predictiondiffs.asreml | Deprecated Functions in the Package asremlPlus
predictionplot.asreml | Deprecated Functions in the Package asremlPlus
predictions.frame | Description of a predictions object
predictions.frame-class | Description of a predictions object
predictparallel.asreml | Deprecated Functions in the Package asremlPlus
predictPlus | Forms the predictions for a term, their pairwise differences and associated statistics. A factor having parallel values may occur in the model and a linear transformation of the predictions can be specified. It results in an object of class alldifffs.
predictPlus.asreml | Forms the predictions for a term, their pairwise differences and associated statistics. A factor having parallel values may occur in the model and a linear transformation of the predictions can be specified. It results in an object of class alldifffs.
predictPresent | Forms the predictions for each of one or more terms and presents them in tables and/or graphs.
predictPresent.asreml | Forms the predictions for each of one or more terms and presents them in tables and/or graphs.
print.alldiffs | Prints the values in an 'alldiffs.object' in a nice format.
print.asrtests | Prints the values in an 'asrtests.object'
print.predictions.frame | Prints the values in a 'predictions.frame', with or without title and heading.
print.test.summary | Prints a data.frame containing a test.summary.
print.wald.tab | Prints a data.frame containing a Wald or pseudoanova table.
printFormulae | Prints the formulae from an asreml object.
printFormulae.asreml | Prints the formulae from an asreml object.

## -- R --

recalc.wald.tab.asreml | Deprecated Functions in the Package asremlPlus
recalc.wald.tab.asrtests | Deprecated Functions in the Package asremlPlus
recalcLSD | Adds or recalculates the LSD component of an 'alldiffs.object'.
recalcLSD.alldiffs | Adds or recalculates the LSD component of an 'alldiffs.object'.
recalcWaldTab | Recalculates the denDF, F.inc and P values for a table of Wald test statistics obtained using 'wald.asreml'
recalcWaldTab.asrtests | Recalculates the denDF, F.inc and P values for a table of Wald test statistics obtained using 'wald.asreml'
redoErrorIntervals | Adds or replaces the error intervals stored in a prediction component of an 'alldiffs.object'.
redoErrorIntervals.alldiffs | Adds or replaces the error intervals stored in a prediction component of an 'alldiffs.object'.
reml.lrt | Deprecated Functions in the Package asremlPlus
reml.lrt.asreml | Deprecated Functions in the Package asremlPlus
REMLRT | Performs a REML ratio test to compare two models.
REMLRT.asreml | Performs a REML ratio test to compare two models.
renewClassify | Renews the components in an 'alldiffs.object' according to a new classify.
renewClassify.alldiffs | Renews the components in an 'alldiffs.object' according to a new classify.
reorderClassify | Deprecated Functions in the Package asremlPlus
reorderClassify.alldiffs | Deprecated Functions in the Package asremlPlus
reparamSigDevn | Reparamterizes each random (deviations) term involving 'devn.fac' to a fixed term and ensures that the same term, with 'trend.num' replacing 'devn.fac', is included if any other term with 'trend.num' is included in 'terms'.
reparamSigDevn.asrtests | Reparamterizes each random (deviations) term involving 'devn.fac' to a fixed term and ensures that the same term, with 'trend.num' replacing 'devn.fac', is included if any other term with 'trend.num' is included in 'terms'.
rmboundary | Removes any boundary or singular variance components from the fit stored in 'asrtests.obj' and records their removal in an 'asrtests.object'.
rmboundary.asreml | Deprecated Functions in the Package asremlPlus
rmboundary.asrtests | Removes any boundary or singular variance components from the fit stored in 'asrtests.obj' and records their removal in an 'asrtests.object'.

## -- S --

setvarianceterms | allows the setting of bounds and initial values for terms in the 'random' and 'residual' arguments of an 'asreml' call, with the resulting call being evaluated.
setvarianceterms.asreml | Deprecated Functions in the Package asremlPlus
setvarianceterms.call | allows the setting of bounds and initial values for terms in the 'random' and 'residual' arguments of an 'asreml' call, with the resulting call being evaluated.
sig.devn.reparam.asreml | Deprecated Functions in the Package asremlPlus
sig.devn.reparam.asrtests | Deprecated Functions in the Package asremlPlus
simulate.asreml | Produce sets of simulated data from a multivariate normal distribtion and save quantites related to the simulated data
sort.alldiffs | Sorts the components in an 'alldiffs.object' according to the predicted values associated with a factor.
subset.alldiffs | Subsets the components in an 'alldiffs.object' according to the supplied condition.

## -- T --

testranfix | Tests for a single fixed or random term in model fitted using 'asreml' and records the result in an 'asrtests.object'.
testranfix.asreml | Deprecated Functions in the Package asremlPlus
testranfix.asrtests | Tests for a single fixed or random term in model fitted using 'asreml' and records the result in an 'asrtests.object'.
testrcov.asreml | Deprecated Functions in the Package asremlPlus
testrcov.asrtests | Deprecated Functions in the Package asremlPlus
testresidual | Fits a new residual formula, tests whether the change is significant and records the result in an 'asrtests.object'.
testresidual.asrtests | Fits a new residual formula, tests whether the change is significant and records the result in an 'asrtests.object'.
testswapran | Tests, using a REMLRT, the significance of the difference between the current random model and one in which oldterms are dropped and newterms are added. The result is recorded in an 'asrtests.object'.
testswapran.asreml | Deprecated Functions in the Package asremlPlus
testswapran.asrtests | Tests, using a REMLRT, the significance of the difference between the current random model and one in which oldterms are dropped and newterms are added. The result is recorded in an 'asrtests.object'.

## -- V --

validAlldiffs | Checks that an object is a valid alldiffs object.
validAsrtests | Checks that an object is a valid asrtests object.
validPredictionsFrame | Checks that an object is a valid predictions.frame.
variofaces | Plots empirical variogram faces, including envelopes, as described by Stefanova, Smith & Cullis (2009).
variofaces.asreml | Plots empirical variogram faces, including envelopes, as described by Stefanova, Smith & Cullis (2009).

## -- W --

WaterRunoff.dat | Data for an experiment to investigate the quality of water runoff over time
Wheat.dat | Data for a 1976 experiment to investigate 25 varieties of wheat