The following SAS program is submitted:

data numrecords;

infile 'file-specification';

input @1 patient $15.

relative $ 16-26 @;

if relative = 'children' then

input @54 diagnosis $15. @;

else if relative = 'parents' then

input @28 doctor $15.

clinic $ 44-53

@54 diagnosis $15. @;

input age;

run;

How many raw data records are read during each iteration of the DATA step

during execution?

A. 1

B. 2

C. 3

D. 4

麻烦高手帮忙理顺一下思路。谢谢。

The following SAS program is submitted:

data revenue;

set year_1;

var1 = mdy(1,15,1960);

run;

Which one of the following values does the variable named VAR1 contain?

A. 14

B. 15

C. 1151960

D. '1/15/1960'

为什么答案是Ａ呢？　谢谢

[此贴子已经被作者于2007-3-22 2:58:01编辑过]