Polynomial fit:
     1.033057  +-  0.017488
     1.740034  +-  0.232731
     3.703208  +-  0.820021
     3.069253  +-  0.967991
     5.389256  +-  0.343814
 Chi-squared  107.806831

 Legendre polynomial fit
     3.345269  +-  0.350306
     3.581678  +-  0.792447
     5.548294  +-  0.731828
     1.227746  +-  0.387197
     1.231820  +-  0.078586
 Chi-squared  107.806694