{"coeffs": [-1.8336844679692246e-07, -2.2348507311056914e-08, -0.313756372849729, 0.018655097186449202], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.0318520223441346e-08, 1.0753775611976585e-08, 0.01958837654904547, 0.01559666551946595], "covariance": [[4.12842264070395e-16, -6.834906267109652e-18, 1.4491825011418798e-10, -1.022921270144332e-10], [-6.834906267109652e-18, 1.1564368991274239e-16, 3.9410693759074247e-11, 3.045502271300352e-11], [1.4491825011418798e-10, 3.9410693759074247e-11, 0.0003837044958271945, -2.297187298984248e-05], [-1.022921270144332e-10, 3.045502271300352e-11, -2.2971872989842485e-05, 0.00024325597532609807]]}