Identifies a statement that is referred to by another statement
Valid: in a DATA step
Category: Control
Type: Declarative
label : statement ;
label
specifies any SAS name , which is followed by a colon (:). You must specify the label argument.
statement
specifies any executable statement, including a null statement (;). You must specify the statement argument.
Restriction: No two statements in a DATA step can have the same label.
Restriction: If a statement in a DATA step is labeled, it should be referenced by a statement or option in the same step.
Tip: A null statement can have a label:
ABC:;
The statement label identifies the destination of either a GO TO statement, a LINK statement, the HEADER= option in a FILE statement, or the EOF= option in an INFILE statement.
The LABEL statement assigns a descriptive label to a variable. A statement label identifies a statement or group of statements that are referred to in the same DATA step by another statement, such as a GO TO statement.
In this example, if Stock=0, the GO TO statement causes SAS to jump to the statement that is labeled reorder. When Stock is not 0, execution continues to the RETURN statement and then returns to the beginning of the DATA step for the next observation.
data Inventory Order; input Item $ Stock @; /* go to label reorder: */ if Stock=0 then go to reorder; output Inventory; return; /* destination of GO TO statement */ reorder: input Supplier $; put 'ORDER ITEM ' Item 'FROM ' Supplier; output Order; datalines; milk 0 A bread 3 B ;
Statements:
GO TO Statement on page 1210
LINK Statement on page 1294
Statement Options:
HEADER= option in the FILE statement on page 1159
EOF= option in the INFILE statement on page 1224