[R] confidence interval as shaded band (lme)

[Dennis Murphy]

Hi:

On Mon, Aug 8, 2011 at 10:07 AM, bjmjarrett <bjmjarrett at gmail.com> wrote:
> Hi all,
>
> I’m trying to plot confidence intervals for the fitted values I get with my
> lme model in R.

Which fitted values? The ones conditional on the random effects or the
ones averaged over the random effects? The standard errors of the two
sets of predictions are not the same.
>
> Is there any way I can plot this in the form of a shaded band, like the
> output of geom_smooth() in ggplot2 package. ggplot2 seems to use only lm,
> glm, gam, loess and rlm as smoothing methods.

You can fake it with geom_ribbon(), but it would be convenient to have
the endpoints of the CIs in a data frame you could input into ggplot2.

HTH,
Dennis
>
> Any advice on the functions I should use to accomplish this will be very
> helpful.
>
> Thank you very much.
>
> Ben
>
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