Figure 7
From: Unsupervised EEG preictal interval identification in patients with drug-resistant epilepsy
Results for preictal interval characterisation. Preictal interval was characterised for categories 3 and 6, for the three groups of features, according to three characteristics: (a) starting time before seizure onset, (b) duration, and (c) density. (d) Phi coefficient was computed between preictal clustering solution and the sleep-wake cycle for categories 3, 6, and 2 for the three groups of features. Dots correspond to one of the three preictal characterising variables or to the phi coefficient. Solid and dashed lines indicate medians and means, respectively. Box’s tops and bottoms correspond to the 75th and 25th percentiles, respectively. Whiskers refer to the span of the preictals characteristics or the phi coefficient after discarding outliers.
