public void Scale(INumberTable nTable, bool attributeMode, IList <string> itemList, double factor)
{
double[][] m = (double[][])nTable.Matrix;
IList <int> idxList = ToIndexList(nTable, attributeMode, itemList);
if (factor == 0)
{
double maxValue = double.MinValue;
foreach (int i in idxList)
{
if (attributeMode)
{
for (int row = 0; row < nTable.Rows; row++)
{
maxValue = Math.Max(maxValue, m[row][i]);
}
}
else
{
for (int col = 0; col < nTable.Columns; col++)
{
maxValue = Math.Max(maxValue, m[i][col]);
}
}
}
if (maxValue != 0)
{
factor = Math.Abs(nTable.MaximumValue()) / Math.Abs(maxValue);
}
}
foreach (int i in idxList)
{
if (attributeMode)
{
for (int row = 0; row < nTable.Rows; row++)
{
m[row][i] *= factor;
}
}
else
{
for (int col = 0; col < nTable.Columns; col++)
{
m[i][col] *= factor;
}
}
}
}