{"coeffs": [-6.714363871457657e-07, -4.024612074688159e-08, -0.25698527727052417, 0.04806232054846842], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.5848033498490654e-08, 1.884135367984071e-08, 0.013757092159322986, 0.011926229431147453], "covariance": [[1.285081505708908e-15, -8.724343399549992e-17, 2.7258431784547344e-10, -2.3644367348276484e-10], [-8.724343399549992e-17, 3.5499660848884707e-16, 6.122039504438866e-11, 7.787200484133909e-11], [2.7258431784547344e-10, 6.122039504438866e-11, 0.00018925758468010597, -3.610193071771986e-05], [-2.3644367348276484e-10, 7.787200484133909e-11, -3.610193071771986e-05, 0.0001422349484443677]]}