{"coeffs": [-1.8024205892444647e-07, 8.343243183649492e-09, -0.28150906164191825, 0.02903473470833327], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.2653574110130545e-08, 2.3539065879948092e-08, 0.04409128473391705, 0.03814733015460855], "covariance": [[1.8193273843683985e-15, -6.437621588133179e-17, 8.093736052378616e-10, -6.722746878833131e-10], [-6.43762158813318e-17, 5.540876225005365e-16, 2.2667308424652593e-10, 2.2166392345430515e-10], [8.093736052378616e-10, 2.2667308424652593e-10, 0.0019440413894873463, -0.00020461707227705016], [-6.72274687883313e-10, 2.2166392345430513e-10, -0.00020461707227705016, 0.0014552187979247069]]}