{"coeffs": [1.7691272950607537e-08, 0.13019914818116293, 1.3634780320154316, 0.004161663707303271], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.6416760566526364e-08, 19848.173956058105, 635.3491939860162, 0.05966863928669111], "covariance": [[1.3261804501597097e-15, -0.00011382240481834383, -3.643525316801967e-06, -3.444799287406629e-10], [-0.00011382243943467976, 393950009.38994324, 12610521.324903104, 1184.2804528133888], [-3.643526440706442e-06, 12610521.32488039, 403668.5982986804, 37.909364518064784], [-3.4448003286898746e-10, 1184.280449861313, 37.90936442362787, 0.0035603465143252576]]}