{"coeffs": [-6.414618641603574e-08, 2.6873796081433286e-05, 0.7859412067005045, 0.0634105648328147], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.605332208955946e-08, 3.9427899771052635e-06, 0.018115883679299876, 0.00483811348756525], "covariance": [[5.784107800858273e-15, -1.1489256279767023e-13, -5.171749684123352e-10, -1.8850645359948192e-10], [-1.148925627976701e-13, 1.5545592803561723e-11, 7.115640289310478e-08, 1.773440894525088e-08], [-5.171749684123344e-10, 7.115640289310477e-08, 0.00032818524148192364, 8.264684114288388e-05], [-1.8850645359948218e-10, 1.7734408945250884e-08, 8.264684114288388e-05, 2.3407342118560784e-05]]}