data work.info;
infile 'datafike.txt';
input @1 company $20. @25 state$2.@;
if state=' ' then input @30 year;
else input @30 city year;
input numemployees;
run;
How many raw data records are read during each iteration of the data step?
表示不清楚raw data records 指的是啥?是變量數(shù)目嗎?還是觀測數(shù)目?好像都不是。。