<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _transform_array(self, X):
 r"""Projects the data onto the dominant independent components. Parameters X : ndarray(n, m) the input data Returns ------- Y : ndarray(n,) the projected data """

        X_meanfree = X - self.mean
        Y = np.dot(X_meanfree, self.eigenvectors[:, 0:self.dimension()])

        return Y.astype(self.output_type())