{"coeffs": [-3.6698026797363963e-07, -1.5694771635303545e-08, -0.23194891199554735, 0.031091990871664303], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.6411231050593366e-08, 1.7714741531926345e-08, 0.017107758873433108, 0.014840294794848026], "covariance": [[6.975531256078272e-16, -3.0080674050373355e-17, 1.7735564336622206e-10, -1.4980736852676813e-10], [-3.008067405037336e-17, 3.1381206754295613e-16, 7.527718340168911e-11, 7.073020612954832e-11], [1.7735564336622204e-10, 7.52771834016891e-11, 0.0002926754136715292, -2.1230699663104324e-05], [-1.4980736852676813e-10, 7.073020612954832e-11, -2.123069966310433e-05, 0.0002202343495979934]]}