我现在有5列数据（应该说是五列残差数据），
e1,e2,e3,e4,e5。我现在想对这五列残差数据进行标准化处理（利用SAS软件），我该怎么做呢？谢谢了！

n	e1	e2	e3	e4	e5
1	0.649577	-0.81693	78.13973	2.410513	-0.31207
2	0.639706	-0.02072	69.02807	2.576735	1.416157
3	-0.72868	0.102279	-93.4395	-3.1929	-0.15375
4	1.129186	0.088384	28.01327	3.932548	-0.4801
5	-2.55975	-0.47201	-129.578	-9.08749	0.670403
6	1.165165	-0.6618	426.3289	2.997912	-0.62365
7	0.971382	0.458361	-65.195	4.260378	-1.3212
8	-0.24114	-0.16135	-109.391	-0.52044	0.229742
9	2.202365	0.878327	72.89081	9.818728	1.867335
10	-1.52165	-0.86892	100.4364	-7.56571	-0.06202
11	0.832437	0.268024	7.192672	3.081373	0.513816
12	0.124786	-0.19259	143.4276	0.81534	-0.00638
13	-0.7745	0.378216	-80.8676	-2.58523	0.219364
14	2.536033	0.034448	316.5786	9.638157	-0.45374
15	-0.62887	0.176928	-156.654	-0.9495	0.165252
16	2.754451	1.896834	-41.3277	12.06078	-0.46241