How to Set Limits for Axes in Matplotlib

  1. Xlim() and Ylim() to Set Limits of Axes in Matplotlib
  2. Set_xlim() and Set_ylim() Methods to Set Axis Limits
  3. Axis() Method to Set Limits of Axes in Matplotlib

To set the limits for X-axis only, We could use xlim() and set_xlim() methods. Similarly to set the limits for Y-axis, we could use ylim() and set_ylim() methods. We can also use axis() method which can control the range of both axes.

Xlim() and Ylim() to Set Limits of Axes in Matplotlib

matplotlib.pyplot.xlim() and matplotlib.pyplot.ylim() can be used to set or get limits for X-axis and Y-axis respectively. If we pass arguments in these methods, they set the limits for respective axes and if we do not pass any arguments, we get a range of the respective axes.

import numpy as np
import matplotlib.pyplot as plt

x=np.linspace(0,10,500)
y=np.sin(2 * np.pi * x)+1

fig = plt.figure(figsize=(8, 6))
plt.plot(x,y)
plt.title("Setting range of Axes",fontsize=25)
plt.xlabel("x",fontsize=18)
plt.ylabel("1+sinx",fontsize=18)
plt.xlim(4,8)
plt.ylim(-0.5,2.5)
plt.show()

Output:

set limit of axes using xlim and ylim

This sets the range of X-axis from 4 to 8 while that of Y-axis from -0.5 to 2.5.

import numpy as np
import matplotlib.pyplot as plt

x=np.linspace(1,10,500)
y=np.sin(2 * np.pi * x)+1

fig = plt.figure(figsize=(8, 6))
plt.plot(x,y)
plt.title("Plot without limiting axes",fontsize=25)
plt.xlabel("x",fontsize=18)
plt.ylabel("1+sinx",fontsize=18)
plt.show()

Output:

Plot without limiting axes

As seen in the output figure, if we didn’t use xlim() and ylim() functions, we would get a plot with the full range of axes that is X-axis ranging from 0 to 10 while Y-axis ranging from 0 to 2.

Set_xlim() and Set_ylim() Methods to Set Axis Limits

The matplotlib.axes.Axes.set_xlim and matplotlib.axes.Axes.set_ylim are also used to set the limits for range of numbers that are viewed on resulting plot.

import numpy as np
import matplotlib.pyplot as plt

x=np.linspace(0,10,500)
y=np.sin(2 * np.pi * x)+1

fig = plt.figure(figsize=(8, 6))
axes = plt.axes()
axes.set_xlim([4, 8])
axes.set_ylim([-0.5, 2.5])
plt.plot(x,y)
plt.title("Setting range of Axes",fontsize=25)
plt.xlabel("x",fontsize=18)
plt.ylabel("1+sinx",fontsize=18)
plt.show()

Output:

Set range of axes using set_xlim and set_ylim methods

Axis() Method to Set Limits of Axes in Matplotlib

We could also use matplotlib.pyplot.axis() to set limits of axes. The syntax is as follows:

plt.axis([xmin, xmax, ymin, ymax])

This method eliminates need of separate function for controlling X-axis and Y-axis.

import numpy as np
import matplotlib.pyplot as plt

x=np.linspace(0,10,50)
y=np.sin(2 * np.pi * x)+1

fig = plt.figure(figsize=(8, 6))
plt.axis([4, 9, -0.5, 2.5])
plt.plot(x,y)
plt.title("Setting range of Axes",fontsize=25)
plt.xlabel("x",fontsize=18)
plt.ylabel("1+sinx",fontsize=18)
plt.show()

Output:

set limit of axes using axis method

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