//
// Initialize will check crf inputs and set it to default values if its
// invalid.
//
func (crf *Runtime) Initialize(samples tabula.ClasetInterface) error {
if crf.NStage <= 0 {
crf.NStage = DefStage
}
if crf.TPRate <= 0 || crf.TPRate >= 1 {
crf.TPRate = DefTPRate
}
if crf.TNRate <= 0 || crf.TNRate >= 1 {
crf.TNRate = DefTNRate
}
if crf.NTree <= 0 {
crf.NTree = DefNumTree
}
if crf.PercentBoot <= 0 {
crf.PercentBoot = DefPercentBoot
}
if crf.NRandomFeature <= 0 {
// Set default value to square-root of features.
ncol := samples.GetNColumn() - 1
crf.NRandomFeature = int(math.Sqrt(float64(ncol)))
}
if crf.PerfFile == "" {
crf.PerfFile = DefPerfFile
}
if crf.StatFile == "" {
crf.StatFile = DefStatFile
}
crf.tnset = samples.Clone().(*tabula.Claset)
return crf.Runtime.Initialize()
}