{"coeffs": [-2.193621880622639e-08, 2.412045887269313e-06, 0.441392336739409, 0.10656964583713617], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.222585129572587e-07, 1.4680026192003612e-06, 0.11977842825857754, 0.04772692454261162], "covariance": [[1.4947143990520194e-14, -1.499158964297955e-13, -1.1937802772253139e-08, -5.4231458737056035e-09], [-1.4991589642979443e-13, 2.155031689979121e-12, 1.7550879820467672e-07, 6.76786629742539e-08], [-1.1937802772253053e-08, 1.7550879820467664e-07, 0.014346871876095207, 0.005493430690527292], [-5.423145873705585e-09, 6.767866297425409e-08, 0.0054934306905273095, 0.002277859326296143]]}