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List Archives >  Maple User Group List Archive >  Archive by date >  This Month By Date >  This Month By Topic

[MUG] random numbers

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[MUG] random numbers
Author: Zaifu Zhang    Posted: 27/09/2000 03:59:43 GDT
>> From: Zaifu Zhang

Does anybody know why the command
>stats[random, lognormal[0,1]](10);
sometimes run, sometimes doesn't?




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[MUG] Re: random numbers
Author: Maple Group    Posted: 06/10/2000 14:57:55 GDT
>> From: Maple Group

>>>> From: Zaifu Zhang
| Does anybody know why the command
| >stats[random, lognormal[0,1]](10);
| sometimes run, sometimes doesn't?

-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-

From: "Willard, Daniel Dr DUSA-OR"
To:
Subject: random numbers
Date: Wed, 27 Sep 2000 16:46:39 -0400

It may depend on whether you are using MapleV Rel 5 or Maple6. With 5, try:
>with(stats);
>statevalf[pdf,lognormal[0,1]](10);

Alternately, without the first line,

>stats[statevalf,pdf,lognormal[0,1]](10);

is a possible answer, too. But maybe you want the cdf?


-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-

Date: Wed, 27 Sep 2000 23:05:20 -0700 (PDT)
From: "Jason C. Leach"
To:
Subject: random numbers

hi,

I can confirm that. For me it works every 3-4 time on average.

j

......................
..... Jason C. Leach
... University College of the Cariboo.


-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-

Date: Thu, 28 Sep 2000 16:15:16 -0700 (PDT)
From: Robert Israel
To:
Subject: random numbers

It seems to run into trouble with the fact that the lognormal
random variable must be positive. Of course a work-around is
to get a lognormal[0,1] random variable as exp of a normal[0,1]
random variable.

Robert Israel
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia
Vancouver, BC, Canada V6T 1Z2




Previous by date: [MUG] maple<->matlab?,  Rouben Rostamian
Next by date: [MUG] Re: Missing plot graphics, Maple Group
Previous thread: [MUG] 10 digit number Maple can't factor,  Ken W Smith
Next thread: [MUG] Missing plot graphics,  Pete



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