{"coeffs": [-5.761907255489325e-09, -0.0013866971755503825, 1.4730461839428095, 0.06601615691908881], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.632250738120269e-08, 349.62516209227, 16648.50136308313, 0.5199127806918513], "covariance": [[1.3193245424575239e-15, -8.692773356836348e-06, 0.00041395421885872255, 1.4724225678264677e-08], [-8.692773368748969e-06, 122237.75396804606, -5820734.9738583, -177.19872789498902], [0.00041395421943328764, -5820734.973857568, 277172597.6365809, 8438.00735463943], [1.4724225689989129e-08, -177.19872782081916, 8438.007351108663, 0.2703092995267331]]}