[R] p values of lmer

[R. Michael Weylandt]

On Wed, Jun 19, 2013 at 10:27 AM, meng <laomeng_3 at 163.com> wrote:
> Hi all:
> I met a question about lmer.
>
> fm1 <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy)
> summary(fm1)
>
> ...
>
> Fixed effects:
>             Estimate Std. Error t value
> (Intercept)  251.405      6.825   36.84
> Days          10.467      1.546    6.77
>
> ...
>
> My question:
> Why p values of (Intercept) and Days are not given?

Take a look at R FAQ 7.35.

http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-are-p_002dvalues-not-displayed-when-using-lmer_0028_0029_003f


>
>
> Many thanks!
>
> Best.
>
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>
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