h****9
发帖数: 26 | 1 data a;
input e;
cards;
-32.66
;
run;
proc print data=a;run;
data b;
set a;
e=round(e, .2);
run;
proc print data=b;run;
结果是-32.6
如果e=round(e, .１);
结果是-32.７
为什么呢？ |
l********e
发帖数: 193 | 2 -32.7 is understandable, but for -32.6... why not -32.66
【在 h****9 的大作中提到】
: data a;
: input e;
: cards;
: -32.66
: ;
: run;
: proc print data=a;run;
: data b;
: set a;
: e=round(e, .2);
|
h****9
发帖数: 26 | 3 this is the result when I run these procedures in SAS.
I couldn't figure it out. |
Y**********8
发帖数: 67 | 4 是length的问题？
就是说，variable的length定义了4位，所以最后一位给去掉了
我猜想的
呵呵
【在 h****9 的大作中提到】
: this is the result when I run these procedures in SAS.
: I couldn't figure it out.
|
D******n
发帖数: 2836 | 5 u guys just too lazy to check the documentation
"Basic Concepts
The ROUND function rounds the first argument to a value that is very close t
o a multiple of the second argument. The results might not be an exact multi
ple of the second argument. "
【在 h****9 的大作中提到】
: data a;
: input e;
: cards;
: -32.66
: ;
: run;
: proc print data=a;run;
: data b;
: set a;
: e=round(e, .2);
|
