{"coeffs": [3.417781539913329e-07, 1.2840972254772671, 1.7290654506718577, 0.11229983996134076], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [5.480558543147822e-07, 4078.9483232667935, 358.20804122067386, 0.012296432296187642], "covariance": [[3.003652194487057e-13, -0.0013484863099912966, -0.00011843235409065909, -4.9257963173910656e-09], [-0.0013484863092153834, 16637819.423880985, 1461112.0819072097, 47.98477076759215], [-0.0001184323540194013, 1461112.0819073082, 128313.00079515197, 4.214088614261014], [-4.925796316026073e-09, 47.98477077752966, 4.214088615134621, 0.0001512022472147265]]}