Out of order text labels on stack bar plot (ggplot)

Question

I\'m trying to make a stacked bar chart with text labels, this some example data / code:

library(reshape2)

ConstitutiveHet <- c(7,13)
Enhancer <- c(12         


        

Answer 1

ggplot(meanCombM,aes(group,value,label=value)) +
     geom_col(aes(fill=variable))+
     geom_text(aes(group=variable),position = position_stack(vjust = 0.5))+
     coord_flip()

Hadley answered a question similar to my own in this issue in ggplot2's git repository: https://github.com/tidyverse/ggplot2/issues/1972

Apparently the default grouping behaviour (see: http://ggplot2.tidyverse.org/reference/aes_group_order.html) does not partition the data correctly here without specifying a group aesthetic, which should map to the same value as fill in geom_col in this example.