{"coeffs": [4.100349659565181e-07, 0.30266115514734726, 1.7321187322726173, 0.1356111154477583], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.95313693723413e-07, 149.18127692105602, 67.34844888767644, 0.012755144118651961], "covariance": [[4.834611326792961e-13, -7.150345733482982e-05, -3.2291014102996406e-05, -7.187522813959174e-09], [-7.150345732501255e-05, 22255.053383796803, 10047.126655788608, 1.8276269160479657], [-3.229101409873675e-05, 10047.126655789358, 4535.813567575967, 0.8251927049657816], [-7.1875228134859115e-09, 1.827626916139464, 0.8251927050069561, 0.0001626937014875817]]}