{"coeffs": [4.3157019887893504e-07, 0.6527715812806366, 1.8395026300385042, 0.12543939715558802], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.521683708277702e-07, 2218.318285455919, 428.23843687478745, 0.017436014516544203], "covariance": [[2.0445623557703993e-13, -0.000655955305652557, -0.00012664121217087685, -6.139691762046179e-09], [-0.0006559553055870125, 4920936.015588088, 949969.1489706952, 37.081778335502236], [-0.0001266412121610876, 949969.1489707041, 183388.15881696134, 7.158745136963227], [-6.139691761653884e-09, 37.08177833644835, 7.158745137142785, 0.00030401460222114016]]}