Python中的 Matplotlib.pyplot.xlabels()
Matplotlib是Python中的一个库,它是 NumPy 库的数值数学扩展。 Pyplot是Matplotlib模块的基于状态的接口,它提供了一个类似 MATLAB 的接口。
matplotlib.pyplot.xlabel()函数
matplotlib 库的 pyplot 模块中的xlabel()函数用于设置 x 轴的标签。
Syntax: matplotlib.pyplot.xlabel(xlabel, fontdict=None, labelpad=None, **kwargs)
Parameters: This method accept the following parameters that are described below:
- xlabel: This parameter is the label text. And contains the string value.
- labelpad: This parameter is used for spacing in points from the axes bounding box including ticks and tick labels and its default value is None.
- **kwargs: This parameter is Text properties that is used to control the appearance of the labels.
下面的示例说明了 matplotlib.pyplot 中的 matplotlib.pyplot.xlabel()函数:
示例 #1:
# Implementation of matplotlib.pyplot.xlabels()
# function
import numpy as np
import matplotlib.pyplot as plt
t = np.arange(-180.0, 180.0, 0.1)
s = np.radians(t)/2.
plt.plot(t, s, '-', lw = 2)
plt.xlabel('Longitude')
plt.ylabel('Latitude')
plt.title('xlabels() function')
plt.grid(True)
plt.show()
输出:
示例 #2:
# Implementation of matplotlib.pyplot.xlabels()
# function
import numpy as np
import matplotlib.pyplot as plt
valx1 = np.linspace(0.0, 5.0)
x2 = np.linspace(0.0, 2.0)
valy1 = np.cos(2 * np.pi * valx1) * np.exp(-valx1)
y2 = np.cos(2 * np.pi * x2)
plt.subplot(2, 1, 1)
plt.plot(valx1, valy1, 'o-')
plt.title('xlabel() Example')
plt.ylabel('Damped oscillation')
plt.subplot(2, 1, 2)
plt.plot(x2, y2, '.-')
plt.xlabel('time (s)')
plt.ylabel('Undamped')
plt.show()
输出: