| Mean(DoubleMatrix) | Returns the arithmetic mean of the specified data. |
| Mean(ReadOnlyDoubleMatrix) | Returns the arithmetic mean of the specified data. |
| Mean(DoubleMatrix, DataOperation) | Returns the arithmetic mean of each row or column in the specified data. |
| Mean(ReadOnlyDoubleMatrix, DataOperation) | Returns the arithmetic mean of each row or column in the specified data. |