{"coeffs": [-4.748545090032027e-08, 4.1970715609553996e-10, -0.2827617687663594, 0.010380068070916073], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.992143046584416e-08, 1.253050079161976e-08, 0.07088784195716662, 0.03679930213073645], "covariance": [[3.968633918054639e-16, -1.2407847918251607e-18, 3.62337854456304e-10, -1.4216154683795956e-10], [-1.2407847918251607e-18, 1.5701345008878342e-16, 1.7070896409409944e-10, 7.937531491527553e-11], [3.6233785445630403e-10, 1.7070896409409944e-10, 0.005025086137344232, 0.00042221503930659545], [-1.4216154683795956e-10, 7.937531491527553e-11, 0.00042221503930659545, 0.0013541886373092244]]}