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