{"coeffs": [-6.432161153424283e-06, 0.0021602126015861996, 1.8298878392724167, 0.3280562777553295], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.198232397186591e-06, 0.01816064312289712, 3.047886308584959, 0.0663590973812466], "covariance": [[4.832225672040706e-12, -3.737014619213019e-08, -6.298294150390737e-06, -1.4276575993579953e-07], [-3.73701461921912e-08, 0.0003298089586372304, 0.05534739320966538, 0.0011884673493312476], [-6.2982941504007555e-06, 0.055347393209662095, 9.289610950059647, 0.19985523011375927], [-1.427657599359115e-07, 0.0011884673493302916, 0.19985523011361067, 0.004403529805253769]]}