Matplotlib.axes.Axes.get_shared_y_axes() in Python

Namachila November 1, 2025

0 0 1 minute read

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.

matplotlib.axes.Axes.get_shared_y_axes() Function

The Axes.get_shared_y_axes() function in axes module of matplotlib library is used to return a reference to the shared axes Grouper object for y axes.

Syntax:

Axes.get_shared_y_axes(self)

Below examples illustrate the matplotlib.axes.Axes.get_shared_y_axes() function in matplotlib.axes:

Example 1:

# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
import numpy as np 
    
  
def GFG1(temp): 
    return (5. / 9.) * (temp - 32) 
    
def GFG2(ax1): 
    y1, y2 = ax1.get_ylim() 
    ax_twin .set_ylim(GFG1(y1), GFG1(y2)) 
    ax_twin .figure.canvas.draw() 
    
fig, ax1 = plt.subplots() 
ax_twin = ax1.twiny() 
    
ax1.callbacks.connect("ylim_changed", GFG2) 
ax1.plot(np.linspace(-40, 120, 100)) 
ax1.set_ylim(0, 100) 
    
ax1.set_xlabel('Fahrenheit') 
ax_twin .set_xlabel('Celsius') 
  
w = ax1.get_shared_y_axes() 
w1 = ax_twin.get_shared_y_axes() 
for i in w: 
    x, y = list(i) 
    ax1.text(35, 15, "Value return : \n",  
             fontweight ="bold") 
    ax1.text(20, 12, str(x)+"\n"+str(y),  
             fontweight ="bold") 
      
fig.suptitle('matplotlib.axes.Axes.get_shared_y_axes() \ 
function Example\n\n', fontweight ="bold") 
plt.show() 

Output:

Example 2:

# Implementation of matplotlib function 
import numpy as np 
import matplotlib.pyplot as plt 
   
# Create some mock data 
t = np.arange(0.01, 10.0, 0.001) 
data1 = np.exp(t) 
data2 = np.sin(0.4 * np.pi * t) 
   
fig, ax1 = plt.subplots() 
   
color = 'tab:blue'
ax1.set_ylabel('time (s)') 
ax1.set_xlabel('exp', color = color) 
ax1.plot(data1, t, color = color) 
ax1.tick_params(axis ='x', labelcolor = color) 
   
ax2 = ax1.twiny() 
   
color = 'tab:green'
ax2.set_xlabel('sin', color = color) 
ax2.plot(data2, t, color = color) 
ax2.tick_params(axis ='x', labelcolor = color) 
  
w = ax1.get_shared_y_axes() 
w1 = ax2.get_shared_y_axes() 
for i in w: 
    x, y = list(i) 
    ax1.text(7500, 6.5, "Value return : \n", 
             fontweight ="bold") 
      
    ax1.text(5000, 6, str(x)+"\n"+str(y),  
             fontweight ="bold") 
      
fig.suptitle('matplotlib.axes.Axes.get_shared_y_axes() \ 
function Example\n\n', fontweight ="bold") 
plt.show() 