The matplotlib library in Python comes with a number of useful functions and customizations that help you modify your plot to a great extent. In this tutorial, we will look at how to get the axis range of a matplotlib plot with the help of some examples.
Get Axis Limits using
You can use the
ylim() functions to get the axis ranges for the x-axis and the y-axis respectively. These functions are used to set the axis range (axis limits) by passing the range as a tuple but if you do not pass anything, it returns the current axis limits.
The following is the syntax –
import matplotlib.pyplot as plt # create a plot - for example, a scatter plot plt.scatter(x, y) # get the x-axis limits plt.xlim( # get the y-axis limits plt.ylim()
Let’s now look at some examples of using the above syntax. For this, we will be using the US dollar to Indian rupee conversion data from 2011 to 2020. Let’s plot the data as a scatter plot.
import matplotlib.pyplot as plt # x values - years x = [2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020] # y values - 1 USD in INR y = [46.67, 53.44, 56.57, 62.33, 62.97, 66.46, 67.79, 70.09, 70.39, 76.38] # plot x and y on scatter plot plt.scatter(x, y) # add axes labels plt.xlabel('Year') plt.ylabel('1USD in INR')
Example 1 – Get the x-axis range with
Let’s get the range of values in the x-axis.
# plot x and y on scatter plot plt.scatter(x, y) # get the x-axis range print(plt.xlim())
Example 2 – Get the y-axis range with
You can similarly get the y-axis limits using the
ylim() function on the matplotlib pyplot object
plt without any arguments.
# plot x and y on scatter plot plt.scatter(x, y) # get the y-axis range plt.ylim()
We get the y-axis range as (45.1845, 77.8655).
Note that if you’re working with multiple subplots you can use the
get_ylim() functions on the individual
axes objects (for example
ax1) to get the axis limits for each subplot.
You might also be interested in –
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- Plot a Line Chart in Python with Matplotlib
- Create a Scatter Plot in Python with Matplotlib
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- Add Trendline to a Maplotlib Plot with Code and Output
- How to Add Title to a Plot in Matplotlib? (Code Examples with Output)
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