Chapman ECG dataset

Chapman datasets. All the ECGs have been downsampled to 250Hz. 10-second ECG data has a shape of (n, 12, 2500), where n denotes the number of ECGs, 12 denotes the number of leads, and 2500 denotes the length of each ECG.<br>查普曼数据集（Chapman datasets）。所有心电图（Electrocardiogram，ECG）均已下采样至250Hz。时长10秒的心电图数据张量形状为(n, 12, 2500)，其中n代表心电图样本数量，12代表导联数目，2500代表单条心电图的采样点数。