Random order

* Posted to newsgroup by Rich Ulrich.

> Thanks.  I've gotten it to work, but is there a way to generate 
> random numbers without replacement?
> 

This makes one of your shorter Input Programs:
In order to randomize a fixed range of 1-N --

Input Program. 
Loop IDnum= 1 to N. 
Compute  xxxran= uniform(1). 
End case. 
End loop. 
end input program.

sort cases	by xxxran.
save outfile=*	/keep= idnum.
*comment - this creates a randomized list, 1-N (or whatever),
*   and you can use it by doing a MATCH without giving any
*   variables to match BY (ordinarily an nasty prospect, but OK!).
match files	file=*	/file='needs_id.sav'  .

-- 
Rich Ulrich, wpilib@pitt.edu
http://www.pitt.edu/~wpilib/index.html