Fix wrong reference in docs.
@@ -111,7 +111,7 @@ impl<T: Scalar, R: Dim, C: Dim, S: RawStorage<T, R, C>> Matrix<T, R, C, S> {
/// The sum of all the rows of this matrix.
///
- /// Use `.row_variance_tr` if you need the result in a column vector instead.
+ /// Use `.row_sum_tr` if you need the result in a column vector instead.
///
/// # Example
///
