private static double GetDistanceFromZero(DataRecord Record, string IDAttributeName, string ClassificationAttributeName, double Power = 2d)
{
double distance = 0;
DataRecord zero = new DataRecord();
foreach (string attribute in Record.GetAttributes())
{
zero.AddOrUpdateValue(attribute, "0");
}
foreach (string attributeName in Record.GetAttributes())
{
if (attributeName != ClassificationAttributeName && attributeName != IDAttributeName)
{
distance += Math.Pow(Math.Abs(double.Parse(Record.GetAttributeValue(attributeName)) - double.Parse(zero.GetAttributeValue(attributeName))), Power);
}
}
return(Math.Pow(distance, (1 / Power)));
}
private static double GetDistanceBetweenRecords(DataRecord LHS, DataRecord RHS, string IDAttributeName, string ClassificationAttributeName, double Power = 2d)
{
double distance = 0;
foreach (string attributeName in LHS.GetAttributes())
{
if (attributeName != ClassificationAttributeName && attributeName != IDAttributeName)
{
distance += Math.Pow(Math.Abs(double.Parse(LHS.GetAttributeValue(attributeName)) - double.Parse(RHS.GetAttributeValue(attributeName))), Power);
}
}
return(Math.Pow(distance, (1 / Power)));
}
