Esempio n. 1
0
//
// 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()
}