{"coeffs": [-2.500224516264647e-07, -1.379275117953514e-09, -0.25525351168585986, 0.02912894694697789], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.07633125507134e-08, 3.175720822019032e-08, 0.043121400624439296, 0.037450736447956684], "covariance": [[2.576913901121417e-15, -9.833088319433826e-17, 8.696376163958539e-10, -7.293548887436444e-10], [-9.833088319433827e-17, 1.008520273940524e-15, 3.201736711353901e-10, 3.025167267609145e-10], [8.696376163958539e-10, 3.201736711353901e-10, 0.0018594551918133938, -0.00014733862644194712], [-7.293548887436443e-10, 3.025167267609145e-10, -0.00014733862644194712, 0.0014025576604943114]]}