I have the following count plot in R
mpg %>%
ggplot2::ggplot(ggplot2::aes(x = as.character(class))) +
ggplot2::geom_bar(fill = '#00798c') +
ggplot2::geom_text(stat = "count", ggplot2::aes(label = after_stat(count)), position = ggplot2::position_dodge(width = 0.8), vjust = -0.3)
How can I reorder the bars to be by descending counts?
I'm not sure if I can use the
reorder() function here because there isn't a specific variable for the count. Or am I missing something?
Yes, you can use reorder. You are reordering by the length of each level, so do:
library(ggplot2)
mpg %>%
ggplot(aes(x = reorder(factor(class), class, length))) +
geom_bar(fill = '#00798c') +
geom_text(stat = "count", aes(label = after_stat(count)),
position = position_dodge(width = 0.8), vjust = -0.3)
We could use a combination: fct_rev(fct_infreq(.... from forcats package it is in tidyverse:
library(tidyverse)
mpg %>%
ggplot(aes(x = fct_rev(fct_infreq(as.character(class))))) +
geom_bar(fill = '#00798c') +
geom_text(stat = "count", ggplot2::aes(label = after_stat(count)),
position = ggplot2::position_dodge(width = 0.8), vjust = -0.3)
