{"coeffs": [-5.117831483834413e-06, 2.9354712538454883e-06, -0.11603940221909126, 0.27700745241073754], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.984726427521122e-06, 4.500106316919113e-06, 0.5011552839423046, 0.5622041064188636], "covariance": [[9.969476183243871e-11, -3.872389054145757e-11, 4.629605718891644e-06, -5.403602797775542e-06], [-3.8723890541457436e-11, 2.02509568635753e-11, -1.3801594178712913e-06, 2.4156813958586987e-06], [4.629605718891655e-06, -1.3801594178713028e-06, 0.25115661862329197, -0.2263344664895326], [-5.403602797775533e-06, 2.4156813958587033e-06, -0.2263344664895315, 0.3160734572742329]]}