BREAK

Transfers control from within a DO- or WHILE-loop to the command immediately following the end of the loop. Thus BREAK breaks out of the loop. Here is a simple example using a global macro.

GMACRO
NOMISS
#
# Takes data from the column named X. Finds the first missing
# observation. Then deletes all observations starting with the
# first missing to the end of the column.
# Constants K90 and K91 are used for scratch work
#
LET K90 = COUNT('X')
DO K91 = 1:K90
  IF  'X'(K91) = '*'
    BREAK
  ENDIF
ENDDO
DELETE  K91:K90 'X'
ENDMACRO

The program goes through the values of X until it finds a missing value. It then leaves the loop and goes to the statement following ENDDO--in this example, DELETE.

Note that this program does not handle the case when X has no missing values correctly. We will fix this when we discuss the command EXIT.