{"coeffs": [-1.8385747455755378e-07, 2.7188273605167696e-06, 0.8092797223112213, 0.20877756808059303], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.669860554232199e-08, 1.789754710767685e-07, 0.019368020829998285, 0.02080220464791543], "covariance": [[5.882676092136706e-15, -1.175671145832706e-14, -9.21363154435554e-10, -1.5189048897020831e-09], [-1.175671145832705e-14, 3.2032219247151196e-14, 3.232496924674837e-09, 3.57936371467276e-09], [-9.213631544355519e-10, 3.232496924674835e-09, 0.0003751202308712474, 0.00032777273606828157], [-1.5189048897020823e-09, 3.5793637146727616e-09, 0.00032777273606828206, 0.00043273171821375437]]}