{"coeffs": [-0.0031851928611379594, 1.1424581053388282e-08, -1.9943200290232894, 0.16450144561410143], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.361031345323065, 2.5598085696253452e-08, 225.32484204697897, 0.04438484794779724], "covariance": [[19.018594394890304, -1.4648963085938971e-08, 982.6472177188331, -0.036164792820118655], [-1.464896308959185e-08, 6.552619913127356e-16, -7.637596942455344e-07, 8.179441442899537e-10], [982.6472177189264, -7.63759694053066e-07, 50771.28444349602, -1.8855918811092278], [-0.03616479283048895, 8.179441442903284e-10, -1.8855918816448654, 0.001970014727349081]]}