应该是这种效果吧,代码:
data MyData;
input x1-x20;
cards;
37.3401 59.1790 59.9924 32.0590 34.2586 60.0764 36.1475 51.9345 34.1509 54.1958291 42.60579251 62.56515854 53.65928469 83.2051679 51.85968333 46.86359508 71.37666741 44.16233945 52.5996411 59.73352996
. 82.0663 66.3943 64.8928 79.0591 112.9591 79.0378 101.3805 136.2379 86.90854833 101.9762257 98.00442423 86.00900378 90.15157433 117.4437432 116.1253407 70.61226851 110.2507148 107.4633467 124.0749221
. . 162.6084 157.0837 152.1057 149.1536 140.8206 154.7015 155.4350 177.4285411 145.4357137 181.3424768 116.2362186 145.1332798 155.1039161 145.0955059 100.7284577 123.8219805 172.6377095 126.9934388
. . . 225.9003 246.7498 143.3073 258.4856 156.7793 200.2368 288.4997594 178.5565455 174.0005637 159.2521035 173.8974914 197.3736235 197.9449153 171.4140951 231.0638141 212.3364652 208.2133411
. . . . 144.0494 276.6552 206.1271 231.1685 259.8694 201.7653325 256.5759438 255.352182 310.1898823 83.27253555 189.9902741 274.1956822 190.5785865 178.5163169 217.1068901 280.5820477
. . . . . 334.7699 363.5067 359.8546 214.3625 411.8582955 315.5969377 211.5608599 294.6881751 283.0369609 334.1337465 223.1201256 317.3277954 218.7109283 245.7265994 343.3160566
. . . . . . 281.5594 347.6207 377.8812 444.4587506 374.0263864 384.4970734 383.2971027 287.5679541 281.015204 285.3219605 378.6765851 388.395535 393.677947 298.4558277
. . . . . . . 417.7420 474.5178 372.9132251 449.556563 401.0388051 396.5818433 549.6517143 326.7999081 343.5661715 346.8446767 377.7223186 300.1796109 345.6147348
. . . . . . . . 569.7138 514.6140708 340.4956364 359.6824947 369.3381407 323.2341592 591.010151 367.6281009 296.4764641 411.7807779 365.4126507 469.5626938
. . . . . . . . . 431.3718724 504.2307779 576.7077588 509.9199162 734.8930578 552.2882867 536.624875 589.6201316 500.5185247 574.8076396 580.1925089
;run;
data normalize;set MyData;
array aa x1-x20;
n=.;
do over aa;
if aa not = . and n =. then n=aa;
end;
do over aa;
aa = aa / n;
end;
drop n;
run;


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