{"coeffs": [-5.013068742442662e-07, -1.5007049878870245e-08, -0.2944479724152075, 0.04695755752022738], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.516364237489624e-08, 1.6030720394426315e-08, 0.0160184098168662, 0.013768948231870026], "covariance": [[1.2364817450695986e-15, -7.453482497986289e-17, 3.343915019191998e-10, -2.8226291454593184e-10], [-7.453482497986293e-17, 2.569839963642758e-16, 5.2995742979384484e-11, 7.375933744436175e-11], [3.343915019191998e-10, 5.299574297938451e-11, 0.0002565894530610754, -5.9930010825737466e-05], [-2.8226291454593184e-10, 7.375933744436173e-11, -5.99300108257375e-05, 0.00018958393541191674]]}