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data random;
y=round(16454.6582,2);

y1=round(16454.6582,3);

y2=round(16454.6582,4);

z=Round(645465.3333333,2);

z2=log10(100);
proc print;
run;

answer:

   16454   16454 16454  645466     2   !!!!  ROUND()??

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关键词：CRAZY CRA random Answer ROUND SAS CRAZY

要保留2为小数的话，round(x,0.01)

hehe,it's not VBA you know....

for example, your y2=round(16454.6582,4) means to round to the nearest 4; 16454.6582/4=4113*4+2.6582, since 2.6582 > half of 4, so y2=4113*4 + 4=16456. Your output seems weird.