Creating One Observation per Header Record (3)

Reading Hierarchical Files

Creating One Observation per Header Record

Simple DO Groups

You can use a simple DO group with an IF-THEN statement to execute multiple SAS statements based on the value of a variable.

General form, simple DO Group:
DO;
. . . more SAS statements . . .;
END;

where

DO is the keyword that indicates a group of statements are to be executed as a unit until a matching END statement is encountered
more SAS statements are any valid statements.

Typically, simple DO groups are used with IF-THEN statements to execute multiple statements depending on whether a condition is true or false.
For example, the expression type='X' defines a condition. When the condition is true, the statements following the keyword DO are executed until the END statement is encountered.
if type='X' then do; input @3 Amount comma6.; Total+amount; end;

When the condition type='X' is not true, the statements are not executed.