extention of Z-Alizadeh sani dataset

Note 1: In this extension LAD, LCX, and RCA features have been added. CAD (Last column in dataset) happens when at least one of these three arteries is stenotic. To use this dataset only one of the LAD, LCX, RCA or Cath (Result of angiography) must be in dataset and the other ones must be eliminated for classification.
Note 2: This dataset not only can be used for CAD detection, but also for stenosis diagnosis of each LAD, LCX and RCA arteries.

本扩展版LAD、LCX和RCA特征已被添加。当至少有一条这三条动脉发生狭窄时，数据集中的CAD（最后一列）便会出现。使用此数据集进行分类时，仅需LAD、LCX、RCA或Cath（血管造影结果）中的其中一个存在于数据集中，其余需剔除。注意2：本数据集不仅适用于CAD检测，还可用于对LAD、LCX和RCA每条动脉狭窄的诊断。