{"coeffs": [-4.818420542871373e-07, -1.4697942195972307e-08, -0.30395780613354195, 0.03352233443554727], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.362299968204677e-08, 1.6773203522611708e-08, 0.014149295286305048, 0.0122250910187837], "covariance": [[1.1305061076189174e-15, -4.5965383476853544e-17, 2.3320480514082174e-10, -1.9503365884681313e-10], [-4.5965383476853556e-17, 2.813403564109538e-16, 5.0672143769246596e-11, 5.4594974351285206e-11], [2.3320480514082174e-10, 5.06721437692466e-11, 0.00020020255709905427, -3.015447578134494e-05], [-1.9503365884681315e-10, 5.45949743512852e-11, -3.015447578134494e-05, 0.0001494528504175459]]}