I was having the same problem. I found this reference useful. The tooltip for Sales would use the generic @height, e.g.: hover.tooltips = [(‘Sales’, ‘@height’)] Similarly, replacing @height with @y would give you the total sales for each year. I haven’t figured out how to use the tooltip to access the stacked categories or how … Read more
This might be a solution. What I did was ordering the dataset, so that the value I wanted to appear closest to the x-axis appeared first in the dataset. (I’ve used your ordering of factors here). This fixt the positioning of the bars. Then, we had to change the colors and order of the legend. … Read more
The release notes of ggplot2 version 2.2.0 on Stacking bars suggest: If you want to stack in the opposite order, try forcats::fct_rev() library(ggplot2) # version 2.2.1 used plot_df <- data.frame(group = rep(1:4, 6), levels = factor(c(rep(1:5, each = 4), rep(1, 4)))) ggplot(plot_df, aes(group, fill = forcats::fct_rev(levels))) + geom_bar(position = “fill”) This is the original plot: … Read more