//Get the example pair for the matrix
public MatrixData GetExemplar(int col, int numClasses, int startAt = 0, string colName = "")
{
int cols = NumberOfColumns + numClasses - 1;
MatrixData exemplarData = new MatrixData(NumberOfRows, cols);
for (int r = 0; r < NumberOfRows; r++)
{
double[] rr = new double[cols];
int cc = 0;
for (int c = 0; c < NumberOfColumns; c++)
{
double d = _data[r, c];
if (c == col)
{
for (int j = 0; j < numClasses; j++)
{
rr[cc] = 0;
if ((j) == ((int)d) - startAt)
{
rr[cc] = 1;
}
cc++;
}
}
else
{
rr[cc] = d;
cc++;
}
}
exemplarData.ChangeRow(r, Array.ConvertAll <double, dynamic>(rr, x => (dynamic)x));
//exemplarData.ReSetColTypes();
}
exemplarData.CopyMetaData(this);
string headerName = (string.IsNullOrWhiteSpace(colName))? "Exemplar " : colName;
for (int i = 1; i <= numClasses; i++)
{
exemplarData.DetermineColType(cols - i);
exemplarData.ChangeHeader(cols - i, headerName + (numClasses - i + 1));
}
return(exemplarData);
}