{"coeffs": [-1.1075465811710027e-06, 3.860607401664876e-06, 0.22403827405523655, 0.2537703617181707], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.148511295232427e-07, 2.9263469963539165e-07, 0.01588659088290611, 0.037606426528122884], "covariance": [[1.721014596667103e-13, -1.1757743073181428e-13, 5.737040276779869e-09, -1.5474185410600773e-08], [-1.1757743073181792e-13, 8.56350674306959e-14, -3.3508123157800173e-09, 1.0913216402897333e-08], [5.737040276779481e-09, -3.3508123157796306e-09, 0.00025238376988083553, -0.00047939070521187967], [-1.5474185410601007e-08, 1.0913216402897168e-08, -0.0004793907052119225, 0.0014142433162151048]]}