{"coeffs": [-0.9837337394974195, 0.217653356099973, -0.049537638099534535, 0.2114196076924166], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.5962822071714215e-07, 3.362710890838544e-07, 9.731919334366309e-08, 1.0893318411423231e-07], "covariance": [[0.03229907274191981, -0.05402355711263787, -0.00842110240374424, -0.020303845509729267], [-0.054023557112637885, 0.1433341811674113, 0.03647832952720692, 0.04387885054396659], [-0.008421102403744241, 0.03647832952720692, 0.012005153292613245, 0.009512243557830386], [-0.02030384550972927, 0.04387885054396659, 0.009512243557830386, 0.015041498521368237]]}