code: def analyze(self, s, method='chebyshev', order=30):
          r
          if s.ndim == 3 and s.shape[-1] != 1:
              raise ValueError('Last dimension (#features) should be '
                               '1, got {}.'.format(s.shape))
          return self.filter(s, method, order)
docs: r"""Convenience alias to :meth:`filter`.