python绘图添加文字_Python | 将文字添加到绘图中

港控/mmm° 2023-03-05 10:58 6阅读 0赞

python绘图 添加文字

Adding text to a plot is one of the most used features of matplotlib.pyplot and there is a function defined for this operation i.e. ***matplotlib.pyplot.text()***.

将文本添加到绘图是matplotlib.pyplot最常用的功能之一，并且为此操作定义了一个函数，即***matplotlib.pyplot.text()*** 。

The following example shows the usage of this function.

以下示例显示了此功能的用法。

![Python | Adding Text to the Plot (1)][Python _ Adding Text to the Plot _1]

![Python | Adding Text to the Plot (2)][Python _ Adding Text to the Plot _2]

![Python | Adding Text to the Plot (3)][Python _ Adding Text to the Plot _3]

![Python | Adding Text to the Plot (4)][Python _ Adding Text to the Plot _4]

Reference: [https://matplotlib.org/][https_matplotlib.org]

参考： [https][https_matplotlib.org] : [//matplotlib.org/][https_matplotlib.org]

## 用于向绘图添加文本的Python代码 **(**Python code for adding text to the plot**)** ##

# Data Visualization using Python
    # Adding Text
    
    import numpy as np
    import matplotlib.pyplot as plt
    
    x = np.arange(50)
    y1 = np.arange(50)
    for i in range(50):
        y1[i] = 2*x[i] + np.random.randint(0,5)
    
    # Adding Text Illustration 1
    plt.figure()
    plt.plot(x,y1)
    plt.xlabel('Number Line')
    plt.ylabel('Function')
    plt.title('Adding Text Illustration 1')
    plt.text(30,20,'Added Text : abcd')
    
    # Adding Text Illustration 2
    plt.figure()
    plt.plot(x,y1)
    plt.xlabel('Number Line')
    plt.ylabel('Function')
    plt.title('Adding Text Illustration 2')
    plt.text(30,20,'Added Text : abcd', fontsize=15)
    
    # Adding Text Illustration 3
    plt.figure()
    plt.plot(x,y1)
    plt.xlabel('Number Line')
    plt.ylabel('Function')
    plt.title('Adding Text Illustration 3')
    plt.text(30,20,'Added Text : abcd', fontsize=15, color='g')
    
    # Adding Text Illustration 4
    plt.figure()
    plt.plot(x,y1)
    plt.xlabel('Number Line')
    plt.ylabel('Function')
    plt.title('Adding Text Illustration 4')
    plt.text(0,80, 'Matplotlib', bbox=dict(facecolor='yellow', alpha=0.5), fontsize=15)

**Output:**

**输出：**

Output is as figure

> 翻译自: [https://www.includehelp.com/python/adding-text-to-the-plot.aspx][https_www.includehelp.com_python_adding-text-to-the-plot.aspx]

python绘图 添加文字

[Python _ Adding Text to the Plot _1]: https://www.includehelp.com/python/images/adding-text-to-the-plot-1.jpg
[Python _ Adding Text to the Plot _2]: /images/20230208/882fcaa094234db98e39e568df768025.png
[Python _ Adding Text to the Plot _3]: /images/20230208/d10e27c3f2774042b784e01068d79bbf.png
[Python _ Adding Text to the Plot _4]: https://www.includehelp.com/python/images/adding-text-to-the-plot-4.jpg
[https_matplotlib.org]: https://matplotlib.org/
[https_www.includehelp.com_python_adding-text-to-the-plot.aspx]: https://www.includehelp.com/python/adding-text-to-the-plot.aspx