*21*

You can use the following basic syntax to set the axis ticks in a Matplotlib plot:

#set x-axis ticks (step size=2) plt.xticks(np.arange(min(x), max(x)+1, 2)) #set y-axis ticks (step size=5) plt.yticks(np.arange(min(y), max(y)+1, 5))

The following example shows how to use this syntax in practice.

**Example: Set Axis Ticks in Matplotlib**

Suppose we use the following code to create a line plot in Matplotlib:

import numpy as np import matplotlib.pyplot as plt #define data x = [0, 2, 7, 10, 12, 15, 18, 20] y = [0, 5, 9, 13, 19, 22, 29, 36] #create line plot plt.plot(x,y) #display line plot plt.show()

By default, Matplotlib has chosen to use a step size of **2.5** on the x-axis and **5** on the y-axis.

We can use the following code to change the step size on each axis:

import numpy as np import matplotlib.pyplot as plt #define data x = [0, 2, 7, 10, 12, 15, 18, 20] y = [0, 5, 9, 13, 19, 22, 29, 36] #create line plot plt.plot(x,y) #specify axis tick step sizes plt.xticks(np.arange(min(x), max(x)+1, 2)) plt.yticks(np.arange(min(y), max(y)+1, 4)) #display line plot plt.show()

Notice that the step size on the x-axis is now **2** and the step size on the y-axis is **4**.

**Additional Resources**

The following tutorials explain how to fix other common errors in Python:

How to Fix KeyError in Pandas

How to Fix: ValueError: cannot convert float NaN to integer

How to Fix: ValueError: operands could not be broadcast together with shapes