{"coeffs": [-2.5029776534700955e-07, -4.123588923772686e-09, -0.291381716074786, 0.02233578926422855], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.3343629305728914e-08, 1.3026010347142888e-08, 0.016220222108778763, 0.01445091350104581], "covariance": [[5.449250291632858e-16, -1.4888931494632914e-17, 1.424714684340169e-10, -1.2143877092730633e-10], [-1.4888931494632917e-17, 1.6967694556387357e-16, 4.191789140882894e-11, 4.0324488148135384e-11], [1.4247146843401688e-10, 4.1917891408828945e-11, 0.00026309560525811536, -2.085417115085043e-05], [-1.2143877092730633e-10, 4.032448814813538e-11, -2.085417115085043e-05, 0.00020882890101470806]]}