How to Plot a Cumulative Histogram in R (Example Code)

In this R post you’ll learn how to draw the cumulative sum of a vector in a histogram.

Setting up the Example

data(iris)                       # Example data
head(iris)
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1          5.1         3.5          1.4         0.2  setosa
# 2          4.9         3.0          1.4         0.2  setosa
# 3          4.7         3.2          1.3         0.2  setosa
# 4          4.6         3.1          1.5         0.2  setosa
# 5          5.0         3.6          1.4         0.2  setosa
# 6          5.4         3.9          1.7         0.4  setosa
install.packages("ggplot2")      # Install ggplot2 package
library("ggplot2")               # Load ggplot2 package
ggplot(iris,                     # ggplot2 histogram without cumulative values
       aes(x = Sepal.Length)) +
  geom_histogram()

r graph figure 1 plot cumulative histogram

Example: Draw Cumulative Histogram Using ggplot2 Package

ggplot(iris,                     # ggplot2 histogram with cumulative values
       aes(x = Sepal.Length)) +
  geom_histogram(aes(y = cumsum(..count..)))

r graph figure 2 plot cumulative histogram

Related Tutorials & Further Resources

Here, you can find some further resources on topics such as ggplot2, descriptive statistics, distributions, and lines.

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