def test_leitura_campo_num_int(self):
        self.assertEqual(self.header_arquivo.controle_banco, 341)
def show_clusters(clusters, sample, covariances, means, figure=None, display=True):
        """!
        @brief Draws clusters and in case of two-dimensional dataset draws their ellipses.
        @details Allocated figure by this method should be closed using `close()` method of this visualizer.