[R] set.seed(x)

C W tmrsg11 at gmail.com
Thu Jun 13 23:59:32 CEST 2013


I asked a similar question earlier in the year,
http://r.789695.n4.nabble.com/How-to-stop-set-seed-besides-exiting-out-of-R-td4661717.html

I liked this solution from William,
> rm(list=".Random.seed", envir=globalenv())

Mike

On Thu, Jun 13, 2013 at 5:27 PM, Michael Weylandt
<michael.weylandt at gmail.com> wrote:
>
>
> On Jun 13, 2013, at 18:32, Duncan Murdoch <murdoch.duncan at gmail.com> wrote:
>
>> On 13/06/2013 11:59 AM, Pooya Lalehzari wrote:
>>> Hello,
>>> If I use set.seed(x) to set a seed for the random number generator, how can I undo that to revert a random output every time I run my code?
>>
>> If you remove .Random.seed, then the next time a seed is needed it will be generated from the system clock, so it will appear random.
>
> Also, in recent versions of R (>= 3.0.0 I believe) set.seed(NULL) will do the same.
>
> MW
>
>
>>
>> Duncan Murdoch
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.



More information about the R-help mailing list