{"coeffs": [-4.90568720623243e-07, -2.4395732633249444e-08, -0.17097617801093465, 0.0652274481498681], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.942882827320745e-08, 4.909731418609976e-08, 0.04787229719830492, 0.04280204212639373], "covariance": [[4.820362195390531e-15, -6.497963096769808e-16, 1.740010607776132e-09, -1.7205263158097894e-09], [-6.497963096769808e-16, 2.4105462602885933e-15, 7.399705315503695e-10, 9.84952978259504e-10], [1.740010607776132e-09, 7.399705315503695e-10, 0.0022917568390428333, -0.0003053993665007187], [-1.7205263158097894e-09, 9.84952978259504e-10, -0.00030539936650071864, 0.0018320148101895835]]}