Re: [R] Sampling with replacement

From: Somnath Somnath <somnath700004_at_gmail.com>
Date: Wed, 16 Jun 2010 22:57:32 +0530

Thanks for all those reply. Is there any general rule to determine how many samples I would get from a population of size "n", I draw a sample of size "m" ("m" may be greater than "n") if sample is drawn with replacement?

Thanks,

2010/6/16 Jorge Ivan Velez <jorgeivanvelez_at_gmail.com>

> Hi Rafael,
>
> You might try:
>
> > r <- expand.grid(rep(list(1:20), 4))
> > dim(r)
> [1] 160000 4
>
> HTH,
> Jorge
>
>
> 2010/6/16 Rafael Björk <>
>
>> If you for some reason want to be shown all the possible combinations, try
>> expand.grid(1:20,1:20,1:20,1:20) (ugly code). Don't use this for sampling.
>>
>> hth Rafael
>>
>> 2010/6/16 Jorge Ivan Velez <>
>>
>> Try
>>>
>>> sample(20, 4, replace = TRUE)
>>>
>>> HTH,
>>> Jorge
>>>
>>>
>>> On Wed, Jun 16, 2010 at 10:20 AM, Somnath Somnath <> wrote:
>>>
>>> > Dear all, good morning,
>>> >
>>> > I have a population, let say members are tagged with some simple number
>>> > like
>>> > 1,2,3,...20. I want to draw a sample with replacement of size 4 (say,
>>> can
>>> > be
>>> > more than 20 also). Is there any R function which will show me all such
>>> > possible samples?
>>> >
>>> > Thanks
>>> >
>>> > [[alternative HTML version deleted]]
>>> >
>>> > ______________________________________________
>>> > 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.
>>> >
>>>
>>> [[alternative HTML version deleted]]
>>>
>>> ______________________________________________
>>> 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.
>>>
>>
>>
>

        [[alternative HTML version deleted]]



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