{"coeffs": [8.915863272731326e-09, 1.2819247518677048e-06, 1.0032888716935993, 0.10369030690637514], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.6908528476044506e-09, 9.867231494869245e-08, 0.015920003342667743, 0.0050189490838799455], "covariance": [[1.3622394742669883e-17, -2.062423230831724e-16, -3.2269990288407e-11, -1.3203002078359473e-11], [-2.0624232308317213e-16, 9.736225737333957e-15, 1.5650141818507533e-09, 4.63288297264467e-10], [-3.2269990288406986e-11, 1.565014181850753e-09, 0.00025344650643055217, 7.522684735796812e-05], [-1.3203002078359477e-11, 4.6328829726446696e-10, 7.522684735796811e-05, 2.5189849906579344e-05]]}