29.The following SAS program is sumbitted:

data WORK.INFO;

infile'DATAFILE.TXT';

input @1Company $20. @25 State $2. @;

if State=' 'then input @30 Year;

else input @30City Year;

inputNumEmployees;

run;

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

这题是在70真题上面的，个人感觉答案是2. 答案上面是红色的1个.求解答

同样类似的一题，在123题的15题。上面也是说1个。为什么呢

data numredcords;

infile 'file-spec';

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？

其实我不太明白raw data records的意思。是一行的数据？还是每个variable? 在最后input,这个地方也不太懂。那个input age(input employee)，没说明位置，但是在每次iteration应该是输入到pdv上面吗，missing value? 算不算raw data records？

求教了