private double CompareChanges(RecordSet Current, RecordSet New)
{
Key k = Key.Build(1, Current.Columns.Count - 1);
Current.Sort(k);
New.Sort(k);
double Distance = 0;
for (int i = 0; i < Current.Count; i++)
{
for (int j = 0; j < Current.Columns.Count; j++)
{
Distance += Math.Pow(Current[i][j].DOUBLE - New[i][j].DOUBLE, 2);
}
}
return Distance;
}