private string Predict(Iris member, int k) => this.trainingSet.OrderBy(member.GetEucledeanDistance) .Take(k) .GroupBy(i => i.Species) .OrderByDescending(g => g.Count()) .ThenBy(g => g.Sum(i => member.GetEucledeanDistance(i))) .First() .Key;
public double GetEucledeanDistance(Iris other) =>
Math.Sqrt(Math.Pow(this.SepalLengthCm - other.SepalLengthCm, 2) +
Math.Pow(this.SepalWidthCm - other.SepalWidthCm, 2) +
Math.Pow(this.PetalLengthCm - other.PetalLengthCm, 2) +
Math.Pow(this.PetalWidthCm - other.PetalWidthCm, 2));