{"coeffs": [-1.262250077576298e-06, 7.829641363242418e-05, 0.40303224648529606, 0.13255376679822117], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0511915673119313e-07, 1.236017828586324e-06, 0.0042508892213030175, 0.00249825050070086], "covariance": [[4.207386845811577e-14, -1.7234748808657501e-13, -4.899853200139509e-10, -4.2948635393632646e-10], [-1.723474880865749e-13, 1.5277400725832512e-12, 5.1502784363910765e-09, 2.8620255525966954e-09], [-4.899853200139505e-10, 5.1502784363910765e-09, 1.8070059171790174e-05, 9.318438976055926e-06], [-4.2948635393632615e-10, 2.8620255525966967e-09, 9.318438976055929e-06, 6.241255564252099e-06]]}