Fig. 3

AR model order estimation. a Cumulative histogram for one patient showing percentage of AEGs (out of 2048) covered by the respective orders calculated by the CAT method (Fs = 75 Hz over 20.478 s). In this case p = 23 covers at least 95 % of all AEGs, but as odd orders were avoided (see text) we choose p = 24; b ‘Overall’ model order calculated for all patients using CAT technique for various Fs values. These overall order values chosen also cover at least 95 % of all AEGs (p = 126, 104, 60, 42, 30, 24; 20 and 18 respectively)