{"coeffs": [-1.8289573186860206e-07, -1.8245045948357237e-09, -0.2518400618273475, 0.011847329153750192], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.0234038236794926e-08, 2.1046280938958474e-08, 0.02684022561208679, 0.025219263985976178], "covariance": [[9.140970681039777e-16, -1.3707423094743533e-17, 1.3433603325336243e-10, -1.1384531460260195e-10], [-1.3707423094743529e-17, 4.429459413615668e-16, 1.3129359092754588e-10, 1.198489748261638e-10], [1.343360332533624e-10, 1.312935909275459e-10, 0.0007203977109077197, 0.00031828754476678225], [-1.1384531460260198e-10, 1.1984897482616382e-10, 0.0003182875447667822, 0.0006360112759943551]]}