{"coeffs": [-0.003066733291109344, 1.6489317706800685e-08, -1.9077324380861311, 0.1527225198669468], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [12.077804043373694, 7.038243220488466e-08, 602.2171528812621, 0.15410900029538344], "covariance": [[145.87335051013397, -3.307383387322925e-07, 7273.445950867674, -0.9452790984735828], [-3.307383387171407e-07, 4.9536867630751865e-15, -1.6543389675088283e-05, 8.0389651597866e-09], [7273.4459508672, -1.6543389675827678e-05, 362665.4992244134, -47.29408143509911], [-0.9452790984217813, 8.038965159782e-09, -47.29408143251928, 0.02374958397204249]]}