{"coeffs": [-7.872092542137637e-07, -4.545398382933408e-08, -0.20754344157659482, 0.05291260364996879], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.073617805047021e-07, 1.3667278101667048e-07, 0.08000243952609414, 0.0701656322815813], "covariance": [[4.2998908014080247e-14, -3.9217357835413714e-15, 8.338613648090132e-09, -7.648612637019499e-09], [-3.921735783541371e-15, 1.8679449070830764e-14, 3.161645739034096e-09, 3.7377703528583976e-09], [8.33861364809013e-09, 3.161645739034096e-09, 0.00640039033012635, -0.0008309140942791502], [-7.648612637019499e-09, 3.7377703528583976e-09, -0.0008309140942791502, 0.004923215953474084]]}