[R] u value

[Seyed Reza Jafarzadeh]

# two-tailed
> 0.05 / 2
[1] 0.025

# for the lower tail
> qnorm(c(0.025), mean=0, sd=1, lower.tail=TRUE)
[1] -1.959964

# for the upper tail
> qnorm(c(0.025), mean=0, sd=1, lower.tail=FALSE)
[1] 1.959964




On 3/30/06, ronggui <ronggui.huang at gmail.com> wrote:
> > qnorm(1-0.05/2)
> [1] 1.959964
> > qnorm(0.05/2,lower=F)
> [1] 1.959964
>
>
>
> 2006/3/31, XinMeng <xmeng at capitalbio.com>:
> > As to the standard normal sidtribution,if alpha=0.05(2 tailed),how can I get the "u value" by using R command?
> >
> > p.s result: u value is 1.96.
> >
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> »ÆÈÙ¹ó
> Deparment of Sociology
> Fudan University
>
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