R help - Jul 2019 - Sample size required to estimate population variance

Hello,Maybe I'm not understanding but to compute the sample variance you
need at least 2 data points??The ML estimator can be computed with just 1 but it
will be zero.Hope this helps,Rui Barradas?Enviado a partir do meu smartphone
Samsung Galaxy.-------- Mensagem original --------De: Thomas Subia via R-help
<r-help at r-project.org> Data: 02/07/2019  23:23  (GMT+00:00) Para:
r-help at r-project.org Assunto: [R] Sample size required to estimate population
variance Colleagues,Can anyone suggest a package or code which might help me
calculate the minimum sample size required to estimate the population variance?
I can do this in Minitab but I'd rather do this in R.Thomas Subia
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mailing list -- To UNSUBSCRIBE and more,
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Hello,

Sorry for the HTML, I hadn't realised that my cellphone was not  
sending in plain text.

Rui Barradas







Citando ruipbarradas <ruipbarradas at sapo.pt>:
> Hello,Maybe I'm not understanding but to compute the sample variance  
> you need at least 2 data points??The ML estimator can be computed  
> with just 1 but it will be zero.Hope this helps,Rui Barradas?Enviado  
> a partir do meu smartphone Samsung Galaxy.-------- Mensagem original  
> --------De: Thomas Subia via R-help <r-help at r-project.org> Data:  
> 02/07/2019  23:23  (GMT+00:00) Para: r-help at r-project.org Assunto:  
> [R] Sample size required to estimate population variance  
> Colleagues,Can anyone suggest a package or code which might help me  
> calculate the minimum sample size required to estimate the  
> population variance? I can do this in Minitab but I'd rather do this  
> in R.Thomas Subia	[[alternative HTML version  
> deleted]]______________________________________________R-help at
r-project.org
> mailing list -- To UNSUBSCRIBE and more,  
> seehttps://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the  
> posting guide http://www.R-project.org/posting-guide.htmland provide  
> commented, minimal, self-contained, reproducible code.
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.