Nothing
estimateMuAux <- function(obs, flavor=c("learning", "superLearning"), learnMuAux,
light=TRUE, SuperLearner.=NULL, ..., verbose=FALSE) {
## - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
## Validate arguments
## - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
## Argument 'obs':
obs <- validateArgumentObs(obs);
## Argument 'flavor':
flavor <- match.arg(flavor);
learnMode <- switch(flavor,
learning="function",
superLearning="character");
## Argument 'learnMuAux'
mode <- mode(learnMuAux);
if (mode != learnMode) {
throw("Argument 'learnMuAux' should be of mode '", learnMode, "', not '", mode, "' for flavor: ", flavor);
}
## Argument 'SuperLearner.'
if (flavor=="superLearning") {
if (is.null(SuperLearner.) || mode(SuperLearner.)!="function") {
throw("Argument 'SuperLearner.' should be a function")
}
}
## Argument 'verbose'
verbose <- Arguments$getVerbose(verbose);
idx <- which(obs[, "X"] != 0);
if (flavor=="learning") {
muAux <- learnMuAux(obs[idx, ], light=light, ...);
} else if (flavor=="superLearning") {
logSL <- as.logical(less(verbose, 10)); ## decrease verbosity in SuperLearner
SL.library.muAux <- learnMuAux;
obsD <- as.data.frame(obs)
## WW <- obsD[idx, "W", drop=FALSE]
WW <- extractW(obsD[idx, ])
fitMuAux <- SuperLearner.(Y=obsD[idx, "X"], X=WW,
SL.library=SL.library.muAux, verbose=logSL,
family=gaussian(), ...);
verbose && print(verbose, fitMuAux);
muAux <- function(W) {
Wd <- as.data.frame(W)
predict(fitMuAux, newdata=Wd)$pred;
}
}
verbose && cat(verbose, "mu'(W):");
verbose && print(verbose, summary(muAux(extractW(obs))));
muAux
}
############################################################################
## HISTORY:
## 2014-02-07
## o Created.
############################################################################
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