{"coeffs": [-3.4193787188788864e-07, -1.4255650111101663e-08, -0.23139396939500775, 0.04099893103909648], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.197236508454777e-08, 1.9801520885740537e-08, 0.024103955882285154, 0.020930719621833016], "covariance": [[1.0222321290996094e-15, -6.130285563174806e-17, 3.60487900792631e-10, -3.1331880428138877e-10], [-6.130285563174806e-17, 3.9210022938841863e-16, 1.2420969445415193e-10, 1.3179593486179917e-10], [3.6048790079263095e-10, 1.2420969445415196e-10, 0.000581000689175149, -6.804788516875907e-05], [-3.133188042813887e-10, 1.3179593486179917e-10, -6.804788516875909e-05, 0.0004380950238877857]]}