private IDataViewClustered InitDataViewClustered(IDataView data, Row[] startCentroids)
{
IDataViewClustered dataViewClustered = new DataViewClustered(data);
int lengthOfRows = dataViewClustered.Rows.Length;
DistanceDeterminator distanceDeterminator = new DistanceDeterminator(new EuclideanDistance());
for (int i = 0; i < lengthOfRows; i++)
{
int bestCluster = 0;
float bestDistance = float.MaxValue;
var row = data.Rows[i];
for (int j = 0; j < startCentroids.Length; j++)
{
float distance = distanceDeterminator.Calculate(row, startCentroids[j]);
if (distance < bestDistance)
{
bestCluster = j;
bestDistance = distance;
}
}
dataViewClustered.Clustered[i] = bestCluster;
}
return(dataViewClustered);
}
public ActionResult <float> EvaluateClustering(DataViewClustered dataViewClustered)
{
IQualityMeasurement evaluator = new IndexC();
var res = evaluator.EvaluateQuality(dataViewClustered, new EuclideanDistance());
return(Ok(res));
}
