how to make single stacked bar chart in ggplot2

Question

Ancestry <- data.frame(Race = c(\"European\", \"African American\", \"Asian\", \"Hispanic\", \"Other\"), Proportion = c(40, 30, 10, 15, 5))
Ancestry %>% 
ggplo         


        

Answer 1

You need to create a dummy variable for x-axis. Then use geom_col which is similar to geom_bar(stat = "identity") to plot the stacked barplot + geom_text to put the text on the bar.

The plot you showed used theme_economist from the ggthemes package.

library(tidyverse)

Ancestry <- data.frame(Race = c("European", "African American", "Asian", "Hispanic", "Other"), 
                       Proportion = c(40, 30, 10, 15, 5))

Ancestry <- Ancestry %>% 
  mutate(Year = "2006")

ggplot(Ancestry, aes(x = Year, y = Proportion, fill = Race)) +
  geom_col() +
  geom_text(aes(label = paste0(Proportion, "%")),
            position = position_stack(vjust = 0.5)) +
  scale_fill_brewer(palette = "Set2") +
  theme_minimal(base_size = 16) +
  ylab("Percentage") +
  xlab(NULL)

library(ggthemes)

ggplot(Ancestry, aes(x = Year, y = Proportion, fill = Race)) +
  geom_col() +
  geom_text(aes(label = paste0(Proportion, "%")),
            position = position_stack(vjust = 0.5)) +
  theme_economist(base_size = 14) +
  scale_fill_economist() +
  theme(legend.position = "right", 
        legend.title = element_blank()) +
  theme(axis.title.y = element_text(margin = margin(r = 20))) +
  ylab("Percentage") +
  xlab(NULL)

Created on 2018-08-26 by the reprex package (v0.2.0.9000).