Re: random number functions under TEMPORARY

Posted by Jon Peck on
URL: http://spssx-discussion.165.s1.nabble.com/random-number-functions-under-TEMPORARY-tp5740354p5740355.html

I don't know why the TEMPORARY sequence is different - maybe TEMPORARY is grabbing some random numbers from the generator - but I would recommend that you use the MT generator rather than MC as it has better randomization properties.  You can set the seed for that, but you cannot show the state, because the state is 64K long.

On Sun, Mar 28, 2021 at 6:58 AM Kirill Orlov <[hidden email]> wrote:
I wonder what mechanics makes random number functions to produce
different result under TEMPORARY.
Compare:

set rng= mc seed= 494676727.
compute x= uniform(1).
print /x.
execute.
echo '----'.

set rng= mc seed= 494676727.
temporary.
compute x= uniform(1).
print /x.
execute.
echo '----'.


      .66
      .76
----
      .10
      .42
----

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--
Jon K Peck
[hidden email]

===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD