1. The role of visualization
Data visualization - the process of using various graphical methods to present data more intuitively
The role of visualization
1. Understand the data faster and find out the rules and anomalies of the data
2. Tell the story behind the data to assist in making business decisions
3. Provide non-professionals with the ability to explore data
How can data analysis problems be presented through visualization?
Typical problem types for data analysis
Visual representation describing the problem
WHAT WAS: How about the performance in the past 7 days?
Visualization of prediction problems
WHAT WILL: What is the expected change in sales over the next few months?
Visual presentation of diagnostic problems and specification problems
WHY: What will affect the user's online time?
HOW: How is the user's online time affected by the current monthly fee?
Second, the basic principles of good visualization
Three principles, good visualization
What effect can be achieved by visual presentation of some of the data in the membership weekly report from the first to the 17th week of 2020?
basic visualization
Show the business side, enrich the detailed data
Show managers, weaken the details, and convey important information
The key to visualization work - choosing the right display method
Basic Elements of Visualization
Four types of scenarios for visualization
Choose the right graphics to show data relationships
3. Summary after class
4. Practice in class
Correct answer: False
Analysis: Visualization can answer WHAT WAS/IS or WHAT WILL questions, as well as WHY and HOW questions
Correct Answer: ABCD
Correct answer: D
Correct answer: correct
Correct Answer: ACD
Correct answer: ABC