{"coeffs": [-2.3601648639150911e-07, -1.6367781076361743e-09, -0.2658427424041173, 0.028590407678949388], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.8961015445856986e-08, 2.8757097654414077e-08, 0.04205117600212612, 0.03640593829341923], "covariance": [[2.3971810334894464e-15, -8.558841905724814e-17, 8.47105202118149e-10, -7.038951931713325e-10], [-8.558841905724816e-17, 8.269706655055077e-16, 2.7079219164841616e-10, 2.581390386665039e-10], [8.47105202118149e-10, 2.7079219164841616e-10, 0.001768301403161788, -0.00016620243771382185], [-7.038951931713326e-10, 2.581390386665039e-10, -0.00016620243771382185, 0.001325392343024249]]}