{"coeffs": [-4.016163255911408e-07, 4.4829323614057197e-05, 0.5073196916452137, 0.13271290829812765], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.406651371843608e-08, 1.4324426164752825e-06, 0.007331359015575605, 0.002119030949009729], "covariance": [[4.1045181800345594e-15, -8.180828231798752e-14, -4.1935647395543136e-10, -1.3012631955262155e-10], [-8.180828231798623e-14, 2.0518918494945534e-12, 1.049685332691365e-08, 2.966526730959081e-09], [-4.1935647395542495e-10, 1.049685332691366e-08, 5.37488250152617e-05, 1.522303382424249e-05], [-1.3012631955262044e-10, 2.9665267309591037e-09, 1.5223033824242596e-05, 4.490292162861072e-06]]}