{"coeffs": [-8.152934681858793e-07, -1.3964595572466775e-08, -0.31453173661804457, 0.06696537390201304], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.069048549526061e-08, 9.137677785320196e-09, 0.008524196559662184, 0.0067966824487092], "covariance": [[9.41905899934802e-16, -6.60064608471481e-17, 2.086963296620061e-10, -1.5632761032955914e-10], [-6.600646084714818e-17, 8.349715530833422e-17, 5.0398027564212056e-12, 2.663153600084282e-11], [2.0869632966200607e-10, 5.039802756421224e-12, 7.266192698775663e-05, -3.0876103364942386e-05], [-1.563276103295592e-10, 2.6631536000842807e-11, -3.0876103364942406e-05, 4.619489230859169e-05]]}