A histogram shows the distribution of a numeric variable. We create a histogram using the hist() method. It shows the probability distribution of a continuous variable. A histogram only works on a single variable while a bar graph works on two variables:
# Add the essential library
import matplotlib.pyplot as plt
# Create the data
employee_age = [21,28,32,34,35,35,37,42,47,55]
# Create bins for histogram
bins = [20,30,40,50,60]
# Plot the histogram
plt.hist(employee_age, bins, rwidth=0.6)
# Add X Label on X-axis
plt.xlabel("Employee Age")
# Add X Label on X-axis
plt.ylabel("Frequency")
# Add title to graph
plt.title("Employee Age Distribution")
# Show the plot
plt.show()
This results in the following output:
In the preceding histogram, the hist() function takes values, bins, and rwidth. In our example, we are plotting the age of the employee and using a bin of 10 years. We are starting our bin from 20 to 60 with a 10 years bin size. We are using a relative...
