Create Histogram with Logarithmic X-Axis in R (2 Examples)

In this tutorial you’ll learn how to display the x-axis of a graphic in logarithmic scale in the R programming language.

Preparing the Examples

data(iris)                                # Iris as 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

Example 1: Using Base R to Create Histogram with Logarithmic X-Axis

hist(log(iris$Sepal.Length))              # Base R histogram

r graph figure 1 create histogram logarithmic x axis r

Example 2: Using ggplot2 Package to Create Histogram with Logarithmic X-Axis

install.packages("ggplot2")               # Install ggplot2 package
library("ggplot2")                        # Load ggplot2 package
ggplot(iris, aes(log(Sepal.Length))) +    # ggplot2 histogram
  geom_histogram()

r graph figure 2 create histogram logarithmic x axis r

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