System.out.print("..Reading data complete "+(System.currentTimeMillis()-time_mark)+"(ms)\n");
//将数据集分为训练是和测试集
System.out.print("Sspliting....");
float percent = 0.9f;
InstanceSet[] splitsets = instset.split(percent);
InstanceSet trainset = splitsets[0];
InstanceSet testset = splitsets[1];
System.out.print("..Spliting complete!\n");