Hi, I am creating a bar chart of a factor variable. One of the levels has no counts in the data, but I would still like to have it included on the x-axis of my chart. How could I do this? I learned earlier on this forum how to do the equivalent to a table but couldn't figure how to translate to a chart.
Thanks in advance.
library(ggplot2) # 3 factor variable y <- data.frame(howgood = c("Better","Better","Good","Good","Better")) y$howgood <- factor(y$howgood, levels = c("Good", "Better", "Best")) # How to include factor "Best" on the x axis (with a 0 count)? ggplot(y, aes(howgood)) + geom_bar()