{"coeffs": [-2.359374228948224e-07, -3.0852822805289855e-09, -0.26927747539294034, 0.03705867358077556], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.2333168013985557e-08, 6.718825252099956e-09, 0.011557384994444388, 0.009997162638719428], "covariance": [[1.5210703326119645e-16, -7.366660002436433e-18, 6.907315899988596e-11, -5.857884047848186e-11], [-7.366660002436431e-18, 4.5142612768256036e-17, 1.8042030273138262e-11, 1.940842928614295e-11], [6.907315899988595e-11, 1.8042030273138262e-11, 0.00013357314790980832, -1.8706666136957494e-05], [-5.857884047848186e-11, 1.940842928614295e-11, -1.8706666136957494e-05, 9.994326082500762e-05]]}