func (this *DepLearner) MakeMappedHistory(parents ParentSet, cutRanges rlglue.IntRanges) (mappedHistory []Histogram) {
numMappedStates := cutRanges.Count()
mappedHistory = make([]Histogram, numMappedStates*this.bg.numActions)
for i := range mappedHistory {
mappedHistory[i] = make(Histogram, this.bg.numOutcomes)
}
for sk, h := range this.history {
a := uint64(sk) % this.bg.numActions
s := uint64(sk) / this.bg.numActions
sv := this.bg.stateValues[s]
mv := parents.CutValues(sv)
ms := cutRanges.Index(mv)
mk := a + this.bg.numActions*ms
mappedHistory[mk] = mappedHistory[mk].UpdateHistogram(h)
}
return
}
func NewDepLearner(child int, cfg Config, stateRanges, actionRanges rlglue.IntRanges) (this *DepLearner) {
this = new(DepLearner)
this.bg = new(DBaggage)
this.bg.cfg = cfg
this.bg.myRange = stateRanges[child]
this.bg.ranges = stateRanges
this.bg.numStates = stateRanges.Count()
this.bg.numActions = actionRanges.Count()
this.bg.numOutcomes = stateRanges[child].Count()
this.bg.alphaLogFactor = stat.LnΓ(this.bg.cfg.Alpha * float64(this.bg.numOutcomes))
this.bg.alphaLogFactor -= stat.LnΓ(this.bg.cfg.Alpha) * float64(this.bg.numOutcomes)
this.bg.stateValues = make([][]int32, this.bg.numStates)
for s := range this.bg.stateValues {
this.bg.stateValues[s] = this.bg.ranges.Values(uint64(s))
}
this.history = make([]Histogram, this.bg.numStates*this.bg.numActions)
for i := range this.history {
this.history[i] = make(Histogram, this.bg.numOutcomes)
}
this.cutRanges = this.parents.CutRanges(this.bg.ranges)
this.mappedHistory = this.MakeMappedHistory(this.parents, this.cutRanges)
this.mappedLoglihood = this.MappedLoglihoodRatio(this.mappedHistory)
return
}