Hello all,
Would anyone can please give me an example of how to using '@@' in a data _null_; file example?
Thanks!
Hello @GeorgeSAS,
The double trailing @ line-hold specifier is mostly used with an INPUT statement, as in Example 4 of the documentation (please see explanations there). If you insist on an example with data _null_ (and a FILE statement?), here's an adapted version:
data _null_;
file print;
input name $ age @@;
put name age;
datalines;
John 13 Monica 12 Sue 15 Stephen 10
Marc 22 Lily 17
;
Line-hold specifiers can also be used with a PUT statement. In this case, however, the single and double trailing @ are equivalent, so that writing "@@" is unnecessary (again, please see documentation, esp. example 5 there). Here is another example (including a FILE statement):
data _null_;
file print;
length c $11;
do c='first', 'line', 'second', 'line', repeat('-',10);
put c @;
if c='line' then put;
end;
run;
The second PUT statement (called "null PUT statement" in the documentation) releases the output line so that the intended line breaks occur.
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.