{"coeffs": [-7.553027174551133e-07, -3.6766093773949435e-08, -0.20100276411749537, 0.06021167271056098], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.827220097198761e-08, 3.6686768005965906e-08, 0.023859446220407445, 0.02106347821413738], "covariance": [[3.3956494061197135e-15, -3.657404471871211e-16, 7.569863798900431e-10, -7.077366224781279e-10], [-3.657404471871211e-16, 1.3459189467235638e-15, 2.4681937814191304e-10, 3.3052702111083383e-10], [7.569863798900431e-10, 2.4681937814191304e-10, 0.0005692731739445152, -9.387500704971863e-05], [-7.077366224781279e-10, 3.3052702111083383e-10, -9.387500704971863e-05, 0.00044367011447744007]]}