`fitting.rst` contains the following example. ``` >>> from astropy.modeling import * >>> x = np.arange(1, 10, .1) >>> p1 = models.Poly1DModel(2, param_dim=2) >>> p1.parameters = [1, 1, 2, 2, 3, 3] >>> p1.param_sets array([[ 1., 1.], [ 2., 2.], [ 3., 3.]]) >>> y = p1(x) >>> p1.c1.fixed = True >>> pfit = fitting.LinearLSQFitter(p1) ``` The last line raises the exception: `InputParameterError: Parameter of <type 'list'> could not be converted to float`
fitting.rstcontains the following example.The last line raises the exception:
InputParameterError: Parameter of <type 'list'> could not be converted to float