{"coeffs": [-4.246200324242361e-07, 3.8143997420815866e-06, 0.5667054809755658, 0.269383505676085], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.2549258951695393e-07, 1.882075914724449e-06, 0.19843135816200955, 0.0869252919031003], "covariance": [[5.0846907927061486e-14, -4.1260540880912144e-13, -4.3312556153908874e-08, -1.9450675092890896e-08], [-4.1260540880913543e-13, 3.5422097487858717e-12, 3.7338831350469193e-07, 1.624881896016628e-07], [-4.331255615391048e-08, 3.7338831350469315e-07, 0.039375003902019715, 0.01709772394024963], [-1.9450675092891267e-08, 1.6248818960166044e-07, 0.01709772394024932, 0.007556006372439195]]}