Warning: Note that the name of the arguments in line 4 do not start with an "!" however when reference is made within the macro to these parameters, it is necessary to add a "!" at the beginning of the parameter name. The macro variable !var will take all values from 1 to the value of !nbfiles which was given in the macro call. This line works in conjunction with line 12.Each sample will be saved in its own file Thus if nbcases=500 and nbfiles=40, the macro will generate 40 independent random files of 500 cases each. The macro requires 2 arguments when called: nbcases and nbfiles. The name of the macro is !getsamp I like to start macro names with ! this helps to quickly identify macro names in ordinary syntax. This allows me to locate macros faster in long syntax files. I like to enclose my macros between special characters which I use just for this purpose.For greater readability of the Output Window, it is preferable to set it to NO before the macro definition starts and to set it to YES (see line 16) before calling the macro. I use the SET MPRINT command all the time when I write or debug a macro.PRESERVE…RESTORE sequences can be nested up to five levels.
PRESERVE and RESTORE are especially useful with the macro facility. From the Syntax Guide we have: PRESERVE stores current SET specifications that can later be restored by the RESTORE command. This command works in conjunction with the command RESTORE in line 17.Doing so ensures that the macro can be INCLUDED in an other syntax file using the INCLUDE command. Note, it is recommended that all commands start in the first column, sub-commands on the other hand should start in the second or higher column. The macro definition starts at line 4 and ends at line 13.
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