例题程序.sas

sas的程序 有关多元统计下的 很有用

data ex;input y x1-x4@@;
cards;
16.8453	5.6092	7.4436	6.3735	3.7925
21.383	6.6329	10.0585	8.7584	4.6916
23.1716	6.5819	11.1424	9.6623	5.4473
25.7289	7.0974	12.3181	10.6641	6.3134
28.6247	7.7973	13.5101	11.288	7.3173
32.3103	9.1952	14.6343	12.0864	8.4808
36.4037	10.0688	16.1664	12.9822	10.1685
45.0774	12.0844	19.7301	15.5838	13.2629
51.4749	13.1395	22.252	17.4528	16.0834
63.4135	17.4543	27.5363	21.4193	21.1229
82.3484	19.4304	35.6294	28.8678	27.2886
92.7143	21.2031	39.3832	33.0194	32.128
101.4633	24.3772	40.5796	34.3378	36.5065
117.4178	24.1941	48.4759	41.0114	44.7478
147.5213	26.6151	62.6834	52.2893	58.2219
188.8958	30.1613	82.3853	67.8921	76.3492
253.0577	35.8777	111.324	91.4335	105.856
320.4072	45.578	137.4362	102.6372	137.393
397.5701	58.3757	167.9238	130.2389	171.2706
475.8691	68.732	197.5005	157.0486	209.6366
534.5969	70.7519	222.8439	174.1697	241.0011
580.036	71.3285	238.4684	187.0766	270.2391
656.4098	74.1104	268.3988	206.0297	313.9006
728.0774	78.3636	297.0933	217.9077	352.6205
812.8469	79.1826	328.0378	229.521	405.6265
929.4858	83.2886	393.6734	268.2806	452.5238
1133.8828	103.3327	504.571	341.5303	525.9791
1519.90 	112.59	655.27	469.28	752.04
1790.66	123.25	774.66	584.41	892.75
;
proc reg;model y=x1 x2 x4/selection=stepwise noint stb;
run;