[R] Sample size using residual standard deviation

[David Winsemius]

> On Apr 12, 2017, at 3:20 AM, Jomy Jose <infojomy at gmail.com> wrote:
> 
> In R how to calculate sample size,where power,residual standard deviation
> and treatment difference is given.?

Use the non-central t-distribution. The help page has further advice:

?pt


> 
> 	[[alternative HTML version deleted]]

Please read the Posting Guide before any further replies.
______________________________________________
> 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.

David Winsemius
Alameda, CA, USA