func NewKNeighborsClassifier(K int, Weights string) *KNeighborsClassifier {
	return &KNeighborsClassifier{NearestNeighbors: *NewNearestNeighbors(), K: K, Weight: Weights}
}
NewKNeighborsClassifier returns an initialized *KNeighborsClassifier
package neighbors
import (
	"fmt"
	"runtime"
	"sort"
	"github.com/pa-m/sklearn/base"
	"github.com/pa-m/sklearn/metrics"
	"gonum.org/v1/gonum/mat"
)
type KNeighborsClassifier struct {
	base.Predicter
	NearestNeighbors
	K        int
	Weight   string
	Scale    bool
	Distance Distance
	Xscaled, Y *mat.Dense
	Classes    [][]float64
	nOutputs   int
}