I have made a plot of my data but want the bars stacked as a percentage (the data already sums to 100%).
TestData <- tibble(Ethnicity = c(rep("Black",2), rep("Asian",2), rep("White",2)),
Stroke = c(0,1,0,1,0,1),
Percent = c(0.33, 0.67, 0.50, 0.50, 0.20, 0.80))
So, I want only ONE bar for the variable Stroke
ggplot(TestData, aes(x=as.factor(Stroke),
y=Percent,
label = scales::percent(Percent),
fill = as.factor(Stroke) ) )
geom_bar(stat="identity", position="stack")
facet_wrap(~ Ethnicity, ncol = 3, strip.position = "bottom")
scale_y_continuous(labels = scales::percent)
scale_fill_manual(values = c("#1380A1", "#FAAB18"))
geom_text(position = position_stack(vjust=0.5), colour="white", size = 3)
theme_bw()
theme(legend.position="none")
theme(axis.text.x = element_text(size=8))
xlab("")
ylab("")
ggtitle("Stroke among different ethnicities")
theme(plot.title = element_text(hjust = 0.5, size=10, face="bold"))
coord_flip()
I have also tried melt to change the data to long format, but I still cannot get the plot to look correct. Where am I going wrong? Note: I have reviewed other answers, none deal with the facetting that I need.
library(reshape2)
TestDataMelted <- melt(TestData, id=c("Stroke", "Ethnicity"))
CodePudding user response:
The issue is that you map Stroke
on x
. As you want only one stacked bar map a constant on x
, e.g. factor(1)
and use theme options to get rid of the y axis text and ticks:
library(ggplot2)
ggplot(TestData, aes(
x = factor(1),
y = Percent,
label = scales::percent(Percent),
fill = as.factor(Stroke)
))
geom_col(position = "stack")
facet_wrap(~Ethnicity, ncol = 3, strip.position = "bottom")
scale_y_continuous(labels = scales::percent)
scale_fill_manual(values = c("#1380A1", "#FAAB18"))
geom_text(position = position_stack(vjust = 0.5), colour = "white", size = 3)
theme_bw()
theme(legend.position = "none")
theme(axis.text.x = element_text(size = 8),
axis.text.y = element_blank(),
axis.ticks.y = element_blank())
labs(x = NULL, y = NULL, title = "Stroke among different ethnicities")
theme(plot.title = element_text(hjust = 0.5, size = 10, face = "bold"))
coord_flip()
CodePudding user response:
Here is a slightly different approach as of dear @stefan.
Here we use x=""
:
library(tidyverse)
TestData %>%
ggplot(aes(x = "", y= Percent, fill=factor(Stroke), label = scales::percent(Percent)))
geom_col(position = position_stack())
facet_wrap(~ Ethnicity, ncol = 3, strip.position = "bottom")
scale_fill_manual(values = c("#1380A1", "#FAAB18"))
geom_text(position = position_stack(vjust=0.5), colour="white", size = 3)
theme_bw()
theme(legend.position="none")
theme(axis.text.x = element_text(size=8))
xlab("")
ylab("")
ggtitle("Stroke among different ethnicities")
theme(plot.title = element_text(hjust = 0.5, size=10, face="bold"))
coord_flip()