## Do loop Problem

Occasional Contributor
Posts: 6

# Do loop Problem

What's wrong with my do loop code?

"

do Method = 'A','B','C';
do Subj = 1 to 10;
input Score @;
output;
end;
end;
datalines;
250 255 256 300 244 268 301 322 256 333
267 275 256 320 250 340 345 290 280 300
1 2 3 4 5 6 7 8 9 0

;

title "List of Speed-reading Methods Test";
proc print data=readsp noobs;
run;

"

the output can only show these:

"

Method    Subj    Score

C         8       8
C         9       9
C        10       0            “

Where are the others?

Super User
Posts: 8,075

## Do loop Problem

You do not tell it to goto the next line when it has finished reading the 10 values.

Add an INPUT statement after the inner loop.

do Method = 'A','B','C';
do Subj = 1 to 10;
input Score @;
output;
end;

input;
end;
datalines;
250 255 256 300 244 268 301 322 256 333
267 275 256 320 250 340 345 290 280 300
1 2 3 4 5 6 7 8 9 0

;

Super User
Posts: 10,766

## Re: Do loop Problem

you should add double @ to prevent point to skip to next line at next data step iteration.

```data readsp;
do Method = 'A','B','C';
do Subj = 1 to 10;
input Score @@;
output;
end;
end;
datalines;
250 255 256 300 244 268 301 322 256 333
267 275 256 320 250 340 345 290 280 300
1 2 3 4 5 6 7 8 9 0
;

title "List of Speed-reading Methods Test";
proc print data=readsp noobs;
run;

```

Ksharp

Discussion stats
• 2 replies
• 159 views
• 6 likes
• 3 in conversation