{"coeffs": [2.1986868238263e-08, 3.929299737705262e-07, 0.17462301537400757, 0.0701933294904001], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.5833724352358868e-07, 3.167680590701267e-08, 0.0641056823195035, 0.04219053050265827], "covariance": [[2.507068268664823e-14, -3.2952362891273417e-15, 9.818999094473836e-09, -6.160249071793181e-09], [-3.2952362891273405e-15, 1.0034200324705525e-15, -1.0068405795557013e-09, 1.0922864189562638e-09], [9.81899909447384e-09, -1.0068405795557028e-09, 0.0041095385056491044, -0.0022928474323180466], [-6.16024907179318e-09, 1.092286418956264e-09, -0.0022928474323180453, 0.0017800408640957384]]}