R help - Apr 2010 - seed

Hi everybody,

How can I set the seed for my simulations ? Is "set.seed(123456)"
alright ?

Thanks a lot,
Jimmy

	[[alternative HTML version deleted]]

Hi,

On Mon, Apr 26, 2010 at 10:45 AM, Jimmy S?derly <jimmy.soderly at
gmail.com> wrote:
> Hi everybody,
>
> How can I set the seed for my simulations ? Is "set.seed(123456)"
alright ?
Hmm ...

R> set.seed(123456)
R> rnorm(5)
[1]  0.83373317 -0.27604777 -0.35500184  0.08748742  2.25225573

R> rnorm(5)
[1]  0.8344601  1.3124155  2.5026454  1.1682317 -0.4261656

R> set.seed(123456)
R> rnorm(5)
[1]  0.83373317 -0.27604777 -0.35500184  0.08748742  2.25225573


-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact

The set.seed function works like you show.  If you want to get a little fancier
you can use the char2seed function from the TeachingDemos package, then you
could set you seed with something like:
> char2seed('jimmy')
Or another string that represents the simulation.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Jimmy S?derly
> Sent: Monday, April 26, 2010 8:46 AM
> To: r-help at r-project.org
> Subject: [R] seed
> 
> Hi everybody,
> 
> How can I set the seed for my simulations ? Is "set.seed(123456)"
> alright ?
> 
> Thanks a lot,
> Jimmy
> 
> 	[[alternative HTML version deleted]]
> 
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