{"coeffs": [-3.797904791994541e-06, 0.5328499138384469, 2.0687731376098295, 0.1610283263013096], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [4.216359594660818e-06, 3633.024098228646, 1103.652845174366, 0.09856536281119675], "covariance": [[1.777768823148834e-11, -0.011673459156090533, -0.0035466977561601286, -3.6183598332331015e-07], [-0.011673459157313043, 13198864.098310065, 4009597.294244851, 345.64723065700554], [-0.0035466977565294924, 4009597.2942447164, 1218049.602661473, 105.00789166856879], [-3.618359833421566e-07, 345.6472306420694, 105.00789166400843, 0.009715130746102849]]}