Know --matplotlib

Catalog

Matplotlib brief introduction

Matplotlib install

Three step drawing

Common settings for charts

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Matplotlib brief introduction

1.Matplotlib It's a python2D Drawing library , It is often used for data visualization .

2.Matplotlib Very powerful , Only a few lines of code are needed to draw various data visual diagrams .

3.Matplotlib It can not only draw the most basic charts , You can also draw some advanced charts ： double y Axis visual data analysis chart , Stacked Columns , Gradient pie chart , Contour histogram .

4.Matplotlib You can also draw 3D Of .

Matplotlib install

pip install matplotlib

Three step drawing

1. introduce pyplot modular

2. Use plot Method

3. Run the program

 

Be careful ,ro It's red

Common settings for charts

  Basic drawing main functions

matplotlib.pyplot.plot(x,y,format_string,**kwargs)

x yes x Axis ,y yes y Axis ,format_string String that controls the format of the curve , Including color 、 Line styles and marker styles  *kwargs  Key value parameter , It's equivalent to a dictionary 

Line chart test , have a look

  Let's have a fun

Build one first Excel

And then use pandas Access to this Excel data , Then make a line chart