11 practical projects, master Python data visualization - Zhihu

osc_ dihgscoq 2020-11-14 08:18:58
practical projects master python data

​ As the saying goes : Words are not as good as words , Chart is not as good as table .

Human beings are naturally visual animals . Imagine a textbook , If there is no chart 、 Illustration or flow chart , It will become more boring and difficult to understand . Visual effects for data analysis 、 It's crucial to communicate the results .

Data visualization is through easy to read 、 Easy to understand chart , Make it easier for users to understand , In order to achieve the purpose of telling a story to users with numbers .

Take a look at the following works , You'll understand the power of data visualization better :

「 reach ・ Finch manuscript 」

source :


author >> The Visual Agency

Those remarks >> 《 Atlantic manuscript 》 It's the largest of Leonardo da Vinci's manuscripts , common 12 volume ,1119 Zhang . Each block on the top represents the manuscript , Color represents the subject involved , Including geometry and Algebra 、 Physics and Natural Science 、 Tools and machines 、 Architecture and Applied Arts and Humanities .

Friends 1994-2019

source :


author >> frédérik ruys

Those remarks >> This visualization helps friends fans look back on their relationships .Ross and Rachel Between the opening and closing of the opening and closing of …… Closing, opening and closing , The most ancient and weird Phoebe Finally found true love Mike ! And sexy Monica And sweetie Chandler From the fifth season, the inseparable sweetness like the twist .

How to realize data visualization ?

Data visualization , The steps are not complicated , We take the most commonly used data analysis tools Python For example :

1、 Data acquisition

one can't make bricks without straw , So step one , We need to get the data we need according to our goals .

Data acquisition can be divided into external data and internal data . External data can be queried from public data websites , Another way is to use reptiles , This approach will be more flexible .

Internal data is the internal data of the enterprise itself , As a data analyst , Need to use sql And other tools to extract the data .

2、 Data analysis

The second step , We need to clean up the data and analyze the data .

Data cleaning is mainly to solve the problem of data quality , In data collection , Data tends to be messy , Be commonly called “ Dirty data ”, Data cleaning is needed , Including completion of missing values 、 Delete the outliers 、 duplicate value 、 Data conversion and so on .

After processing the data , You can start to analyze , According to your goal , Choose the right method to analyze .

3、 Data visualization

After drawing a conclusion through data analysis , It also needs to be shown graphically , As the saying goes ,“ Not as good as the table , Chart is not as good as table ", Use a chart to show your conclusion more clearly .

Here I want to learn Python Data visualization students recommend a course :《11 A case study Python Data visualization 》.

Study this course , You can go through 11 A practical one Python Data analysis project , To master in actual combat Python Every aspect of Visualization , At the same time, accumulate project experience . You will do the following projects yourself :

Interested students , Welcome to the laboratory building while typing the code ~

Course address :

11 A case study Python Data visualization www.lanqiao.cn Icon

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