EXPORT /OUTFILE=’file_name’ /UNSELECTED={RETAIN,DELETE} /DIGITS=n /DROP=var_list /KEEP=var_list /RENAME=(src_names=target_names)… /TYPE={COMM,TAPE} /MAP
The EXPORT
procedure writes the active dataset’s dictionary and
data to a specified portable file.
By default, cases excluded with FILTER are written to the
file. These can be excluded by specifying DELETE on the UNSELECTED
subcommand. Specifying RETAIN makes the default explicit.
Portable files express real numbers in base 30. Integers are always
expressed to the maximum precision needed to make them exact.
Non-integers are, by default, expressed to the machine’s maximum
natural precision (approximately 15 decimal digits on many machines).
If many numbers require this many digits, the portable file may
significantly increase in size. As an alternative, the DIGITS
subcommand may be used to specify the number of decimal digits of
precision to write. DIGITS
applies only to non-integers.
The OUTFILE
subcommand, which is the only required subcommand, specifies
the portable file to be written as a file name string or
a file handle (see File Handles).
DROP
, KEEP
, and RENAME
follow the same format as the
SAVE
procedure (see SAVE).
The TYPE
subcommand specifies the character set for use in the
portable file. Its value is currently not used.
The MAP
subcommand is currently ignored.
EXPORT
is a procedure. It causes the active dataset to be read.