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# Matplotlib.pyplot.ylim() in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MATLAB-like interface.

## matplotlib.pyplot.ylim() Function

The ylim() function in pyplot module of matplotlib library is used to get or set the y-limits of the current axes.

Syntax: matplotlib.pyplot.ylim(*args, **kwargs)

Parameters: This method accept the following parameters that are described below:

• bottom: This parameter is used to set the ylim to bottom.
• top: This parameter is used to set the ylim to top.
• **kwargs: This parameter is Text properties that is used to control the appearance of the labels.

Returns: This returns the following:

• bottom, top :This returns the tuple of the new y-axis limits.

Below examples illustrate the matplotlib.pyplot.ylim() function in matplotlib.pyplot:

Example #1:

 # Implementation of matplotlib functionimport matplotlib.pyplot as pltimport numpy as np  ax = plt.subplot(111)  t = np.arange(0.0, 5.0, 0.01)s = np.cos(2 * np.pi * t)line, = plt.plot(t, s, lw = 2)  plt.annotate('local max', xy =(2, 1),             xytext =(3, 1.5),             arrowprops = dict(facecolor ='black',                               shrink = 0.05), )  plt.ylim(-2, 2)plt.title(" matplotlib.pyplot.ylim() Example")plt.show()

Output:

Example #2:

 # Implementation of matplotlib functionimport matplotlib.pyplot as pltimport numpy as np  np.random.seed(9680801)  mu, sigma = 50, 13x = mu + sigma * np.random.randn(10000)  # the histogram of the datan, bins, patches = plt.hist(x, 50,                             density = True,                            facecolor ='g',                            alpha = 0.75)    plt.xlabel('No of Users in K')plt.title('Histogram of IQ')plt.text(50, .035, r'$\mu = 50,\\ \sigma = 13$')  plt.xlim(-10, 110)plt.ylim(0, 0.04)  plt.grid(True)plt.title(" matplotlib.pyplot.ylim() Example")  plt.show()

Output:

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