[R] extra .

[Moshe Olshansky]

My guess is that 6. comes for 6.0 - something which comes from programming languages where 6 represents 6 as integer while 6. (or 6.0) represents 6 as floating point number.

--- On Fri, 21/8/09, kfcnhl <zhengchenji18 at hotmail.com> wrote:

> From: kfcnhl <zhengchenji18 at hotmail.com>
> Subject: [R]  extra .
> To: r-help at r-project.org
> Received: Friday, 21 August, 2009, 12:34 PM
> 
> sigma0 <- sqrt((6. * var(maxima))/pi)
> 
> What does the '.' do here?
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