Functions and CALL Routines |
Assigns a variable label to a specified character variable.
Category: |
Variable Control
|
CALL LABEL(variable-1,variable-2);
|
-
variable-1
-
specifies any SAS variable. If variable-1 does not have a label, the variable name is assigned
as the value of variable-2.
-
variable-2
-
specifies any SAS character variable. Variable
labels can be up to 256 characters long. Therefore, the length
of variable-2 should be at least 256 characters
to avoid truncating variable labels.
Note: To conserve space, you should set the length of variable-2 to the length of the label for
variable-1, if it is known. ![[cautionend]](../../../../common/63294/HTML/default/images/cautend.gif)
The CALL LABEL routine assigns the label
of the variable-1 variable to the character variable variable-2.
This example uses the CALL LABEL routine with array
references to assign the labels of all variables in the data set OLD as values
of the variable LAB in data set NEW:
data new;
set old;
/* lab is not in either array */
length lab $256;
/* all character variables in old */
array abc{*} _character_;
/* all numeric variables in old */
array def{*} _numeric_;
do i=1 to dim(abc);
/* get label of character variable */
call label(abc{i},lab);
/* write label to an observation */
output;
end;
do j=1 to dim(def);
/* get label of numeric variable */
call label(def{j},lab);
/* write label to an observation */
output;
end;
stop;
keep lab;
run;
Copyright © 2011 by SAS Institute Inc., Cary, NC, USA. All rights reserved.