{"coeffs": [-2.920996410763722e-07, -1.1305035025331876e-08, -0.2762956460785614, 0.018112349295151695], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.105904560073105e-08, 3.761684621224577e-08, 0.03688879292124605, 0.02972596589373735], "covariance": [[3.728207049672153e-15, -6.545633344603417e-17, 7.570516078457577e-10, -5.511868254807361e-10], [-6.545633344603418e-17, 1.415027118955749e-15, 2.5978558571644695e-10, 1.9556152842653692e-10], [7.570516078457579e-10, 2.5978558571644695e-10, 0.0013607830431865725, -0.00012258926402367682], [-5.511868254807361e-10, 1.9556152842653692e-10, -0.00012258926402367682, 0.0008836330483156363]]}