{"coeffs": [1.7336273382185145e-07, 3.3515652981263772e-06, 0.6908059011748492, 0.20462264502582922], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.609580281351194e-07, 4.4690851848292e-06, 0.5180966360705126, 0.17152760161814332], "covariance": [[6.809909244816976e-14, -9.91363865417076e-13, -1.1426186452752277e-07, -4.206033963908497e-08], [-9.913638654170825e-13, 1.9972722389259843e-11, 2.3132787991847123e-06, 7.420668827463463e-07], [-1.1426186452752344e-07, 2.3132787991847123e-06, 0.26842412430758117, 0.08613763788036734], [-4.206033963908509e-08, 7.420668827463443e-07, 0.08613763788036709, 0.02942171811687248]]}