Matplotlib.artist.Artist.set_label() in Python
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Artist class contains Abstract base class for objects that render into a FigureCanvas. All visible elements in a figure are subclasses of Artist.
Matplotlib.artist.Artist.set_label() Method
The set_label() method in artist module of matplotlib library is used to set the label that will be displayed in the legend.
Syntax: Artist.set_label(self, s)
Parameters: This method accepts only one parameters.
- s: This parameter is converted to a string by calling str.
Returns: This method does not return any value.
Below examples illustrate the matplotlib.artist.Artist.set_label() function in matplotlib:
Example 1:
from matplotlib.artist import Artist
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.collections import EllipseCollection
x = np.arange( 10 )
y = np.arange( 15 )
X, Y = np.meshgrid(x, y)
XY = np.column_stack((X.ravel(), Y.ravel()))
fig, ax = plt.subplots()
ec = EllipseCollection( 10 , 10 , 5 , units = 'y' ,
offsets = XY * 0.5 ,
transOffset = ax.transData,
cmap = "bone" )
ec.set_array((X * Y + X * X).ravel())
ax.add_collection(ec)
ax.autoscale_view()
ax.set_xlabel( 'X' )
ax.set_ylabel( 'y' )
cbar = plt.colorbar(ec)
cbar.set_label( 'X + Y' )
fig.suptitle(
, fontweight = "bold")
plt.show()
|
Output:
Example 2:
from matplotlib.artist import Artist
import matplotlib.pyplot as plt
import numpy as np
np.random.seed( 19680801 )
n = 100000
x = np.random.standard_normal(n)
y = 2 * np.random.standard_normal(n)
z = [ 1 , 2 , 3 , 4 ]
xmin = x. min ()
xmax = x. max ()
ymin = y. min ()
ymax = y. max ()
fig, ax = plt.subplots()
hb = ax.hexbin(x, y,
gridsize = 50 ,
bins = 'log' ,
cmap = 'PuBuGn' )
ax. set (xlim = (xmin, xmax), ylim = (ymin, ymax))
cb = fig.colorbar(hb, ax = ax)
cb.set_label( 'log' )
fig.suptitle(
, fontweight = "bold")
plt.show()
|
Output:
Last Updated :
15 May, 2020
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...