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naming according to styleguide
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jakob-r committed Sep 19, 2016
1 parent 6befed2 commit 15b7e6c
Showing 1 changed file with 15 additions and 16 deletions.
31 changes: 15 additions & 16 deletions R/infillOptFocus.R
Original file line number Diff line number Diff line change
Expand Up @@ -9,12 +9,11 @@
infillOptFocus = function(infill.crit, models, control, par.set, opt.path, design, iter, ...) {
global.y = Inf

discreteVectorPars = filterParams(par.set, type = c("discretevector", "logicalvector"))
discrete.vector.pars = filterParams(par.set, type = c("discretevector", "logicalvector"))

allRequirements = extractSubList(par.set$pars, "requires", simplify = FALSE)
allRequirementVars = unique(unlist(lapply(allRequirements, all.vars)))
forbiddenRequirementVars = getParamIds(discreteVectorPars)
if (any(allRequirementVars %in% forbiddenRequirementVars)) {
all.requirements = extractSubList(par.set$pars, "requires", simplify = FALSE)
all.requirement.vars = unique(unlist(lapply(all.requirements, all.vars)))
if (any(all.requirement.vars %in% getParamIds(discrete.vector.pars))) {
stop("Cannot do focus search when some variables have requirements that depend on discrete or logical vector parameters.")
}

Expand All @@ -27,20 +26,20 @@ infillOptFocus = function(infill.crit, models, control, par.set, opt.path, desig
# Handle discrete vectors (and logical vectors):
# The problem is that for discrete vectors, we can't adjust the range dimension-wise.
# Instead we store the range of each discrete vectorparameter dimension in the list of named characters
# `discreteVectorMapping`. In each iteration a random value (that does not contain
# `discrete.vector.mapping`. In each iteration a random value (that does not contain
# the optimum) is dropped from each vector on this list. The $values of the parameters in the parameterset also
# need to be modified to reflect the reduced range: from them, always the last value is dropped.
# Then `discreteVectorMapping` is a mapping that maps, for each discrete vector param dimension
# Then `discrete.vector.mapping` is a mapping that maps, for each discrete vector param dimension
# with originally n values, from the sampled value (levels 1 to n - #(dropped levels)) to the acutal levels with
# random dropouts.
#
# Since the requirements of the param set are queried while generating the design, this breaks if
# there are requirements depending on discrete vector parameters.
discreteVectorMapping = lapply(discreteVectorPars$pars,
discrete.vector.mapping = lapply(discrete.vector.pars$pars,
function(param) rep(list(setNames(names(param$values), names(param$values))), param$len))
discreteVectorMapping = unlist(discreteVectorMapping, recursive=FALSE)
if (!isEmpty(discreteVectorPars)) {
names(discreteVectorMapping) = getParamIds(discreteVectorPars, with.nr = TRUE, repeated = TRUE)
discrete.vector.mapping = unlist(discrete.vector.mapping, recursive=FALSE)
if (!isEmpty(discrete.vector.pars)) {
names(discrete.vector.mapping) = getParamIds(discrete.vector.pars, with.nr = TRUE, repeated = TRUE)
}


Expand All @@ -53,8 +52,8 @@ infillOptFocus = function(infill.crit, models, control, par.set, opt.path, desig
newdesign = convertDataFrameCols(newdesign, ints.as.num = TRUE, logicals.as.factor = TRUE)

# handle discrete vectors
for (dfindex in names(discreteVectorMapping)) {
mapping = discreteVectorMapping[[dfindex]]
for (dfindex in names(discrete.vector.mapping)) {
mapping = discrete.vector.mapping[[dfindex]]
levels(newdesign[[dfindex]]) = mapping[levels(newdesign[[dfindex]])]
}

Expand Down Expand Up @@ -102,20 +101,20 @@ infillOptFocus = function(infill.crit, models, control, par.set, opt.path, desig
par$values[[to.del]] = NULL
} else {
# we remove the last element of par$values and a random element for
# each dimension in discreteVectorMapping.
# each dimension in discrete.vector.mapping.
par$values = par$values[-length(par$values)]
if (par$type != "logicalvector") {
# for discretevectorparam val would be a list; convert to character vector
val = names(val)
}
for (dimnum in seq_len(par$len)) {
dfindex = paste0(par$id, dimnum)
newmap = val.names = discreteVectorMapping[[dfindex]]
newmap = val.names = discrete.vector.mapping[[dfindex]]
val.names = val.names[val.names != val[dimnum]]
to.del = sample(val.names, 1)
newmap = newmap[newmap != to.del]
names(newmap) = names(par$values)
discreteVectorMapping[[dfindex]] <<- newmap
discrete.vector.mapping[[dfindex]] <<- newmap
}
}
}
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