{"coeffs": [-0.03223383248076651, 1.6558846876870205e-06, -2.57937877094356, 0.2769135054007522], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.135520812633953, 2.251149894461279e-07, 70.10609718268299, 0.02679139266756339], "covariance": [[66.18669889280021, -1.4378820038310019e-06, 570.34929020411, -0.20342684298233496], [-1.4378820039043295e-06, 5.067675847333028e-14, -1.2399655425362856e-05, 5.605529879107882e-09], [570.3492902041522, -1.2399655424753868e-05, 4914.864862187792, -1.7537024934361993], [-0.20342684298779137, 5.6055298790001596e-09, -1.7537024934830894, 0.0007177787210675694]]}