Adding group mean lines to geom_bar plot and including in legend
问题 I want to be able to create a bar graph which shows also shows the mean value for bars in each group. AND shows the mean bar in the legend. I have been able to get this graph Bar chart with means using the code below, which is fine, but I would like to be able to see the mean lines in the legend. ##The data to be graphed is the proportion of persons receiving a treatment ## (num=numerator) in each population (denom=demoninator). The population is ##grouped by two age groups and (Age) and