{"coeffs": [-4.254478392992608e-07, -7.438087985329097e-09, -0.3129623783761661, 0.013277894140697936], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.781115714229894e-08, 9.776626519391974e-09, 0.006288457874736356, 0.00399051093217961], "covariance": [[3.172373187476666e-16, -2.0804314627369408e-18, 3.593603514393928e-11, -1.867321766344558e-11], [-2.0804314627369408e-18, 9.558242609967842e-17, 1.0728914364473972e-11, 5.773011891680114e-12], [3.593603514393928e-11, 1.072891436447397e-11, 3.954470244233369e-05, -1.3297496797164864e-06], [-1.8673217663445585e-11, 5.773011891680114e-12, -1.3297496797164864e-06, 1.5924177499844977e-05]]}