[R] Visualizing contrasts for lmer models

[Witold E Wolski]

Hello,

Is there an R-package which implements visualizations of estimated
coefficients and the data for lmer models similar to those shown here:

http://genomicsclass.github.io/book/pages/interactions_and_contrasts.html
in sections:

Examining the estimated coefficients
(ideally with ggplot)

???

I find these visualizations (especially those for contrasts) very
helpful but despite R -package searches I failed to find a generic
implementation.

best regards
Witek

Witold Eryk Wolski