| public RemoveColumn ( int columnIndexToDelete ) : Matrix | ||
| columnIndexToDelete | int | |
| return | Matrix | |
/// <summary>
/// Returns a new matrix with all of the specified columns removed
/// </summary>
public Matrix RemoveColumns(int[] passedIndicesOfColumnsToRemove)
{
Matrix returnMatrix = new Matrix(this);
int[] indicesOfColumnsToRemove = new int[passedIndicesOfColumnsToRemove.Count()];
passedIndicesOfColumnsToRemove.CopyTo(indicesOfColumnsToRemove, 0);
foreach (int columnToRemove in indicesOfColumnsToRemove)
{
returnMatrix = returnMatrix.RemoveColumn(columnToRemove);
//Now that the matrix has shrunk by 1 column, all of the indices at or after that column need to be decreased by 1
int arrayIndex = 0;
foreach (int index in indicesOfColumnsToRemove)
{
if (index >= columnToRemove)
{
indicesOfColumnsToRemove[arrayIndex] = index - 1;
}
arrayIndex++;
}
}
return returnMatrix;
}
/// <summary>
/// Returns a matrix with the specified row and column removed
/// </summary>
public Matrix GetSubMatrix(int indexOfRowToLeaveOut, int indexOfColumnToLeaveOut)
{
Matrix subMatrix = new Matrix(this.NumberOfRows - 1, this.NumberOfColumns - 1);
subMatrix = this.RemoveRow(indexOfRowToLeaveOut);
subMatrix = subMatrix.RemoveColumn(indexOfColumnToLeaveOut);
return subMatrix;
//return new Matrix(_matrix.SubMatrix(indexOfColumnToLeaveOut, this.NumberOfColumns - 1, indexOfColumnToLeaveOut, this.NumberOfRows - 1));
}