Why do we need data visualization and how to use charts to tell stories? [Mandatory for data analysis]

Why do we need data visualization and how to use charts to tell stories? #

You often need to do data visualization, and then use PPT to persuade senior executives or make various decisions. Today we will share some PPT tips!

Tip: If you want to use a dispatch app to view your friends, please watch them on a Wi-Fi network. It will be slower to open the picture ~

First watch a data visualization video:

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I. Charts play an important role in communication

1. Main roles (shown below)

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2. Cause 1: people are the most sensitive to graphics

• Visual Communication accounts for 83% of the ways to accept things

> Eye economics, TV ads

• People are more sensitive to graphics than text and numbers

> Intuitive and specific

• Second leap

> Use numbers to speak, use graphs to speak, and use consulting company reports.

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3. Reason 2: Graphics help you understand

 

• Reading books for hundreds of times, what do you mean "?

• Information Explosion: declining marginal benefits; Economic

• Promote fast and scientific reading methods. One of the most effective methods is drawing.

• Transformation of thinking

 

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4. Functions of charts

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1. Key factors for successful charts

 

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2. Chart type

 

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Ii. Data charts

1.Create a data-based chart Trilogy

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4. Set the main information as the title

 

• Mysterious title

> Changes in the company's sales trend and product region distribution

> Asset distribution percentage, employee Age Distribution

> Relationship between salary and profit

• Set the main information as the title

> Profit in the western region accounts for nearly half of the total amount of the company

> Minimum Northern income share

• Title requirements

> Reflects the most important information and highlights.

 

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5. determine the relative relationship

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6. Comparison of five basic relationships

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7. Example

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8. Select the chart type

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9. express specific relationships through different charts

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10. component relative relationship

 

• Pie charts are rarely used in five chart forms, but are also the most likely to be abused;

• Principles for using pie charts

> The number of components should not be greater than 6. If the number of components exceeds the limit, the unselected column is "other ";

> Place the most important part close to the unknown at 12 o'clock and highlight it with a strong color;

> A pie chart is superior to a pie chart in that it can clearly display a whole. If you want to compare two or more groups, select a bar chart;

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11. Instance

 

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12. Project relative relationship

 

• Projects can be expressed by bar charts.

> Projects can be sorted.

> The distance between bars is smaller than the width of bars.

> Emphasize important items with the most comparable colors and shadows to emphasize the title of information;

> To highlight a number, you can display the scale at the top, or add a number at the end. Do not display the numbers at the same time;

> Do not display digits after decimal points when displaying numbers.

• Use a bar chart instead of a column chart to indicate the cause of the Project's relative relationship

> Avoid misunderstanding as a time series

> The project name is lengthy and the bar chart has enough space.

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13. Diversity of bar charts

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14. relative relationship of Time Series

 

• Display the relationships that change with time

> If a chart uses a column chart with only a few points (less than 7 points), we recommend that you use a line chart;

> The number level highlighted by the column chart is suitable for events in a short period of time;

> The line chart emphasizes angle motion and image changes.

 

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15. Frequency Distribution relative relationship

• Shows how many items will fall into a data segment with certain characteristics

> Range: no less than 5 groups and no more than 20 groups; use fewer column charts and use more line charts

> Group size: it is best to use a group of roughly the same size. In special cases, the spacing is not equal;

> Note clearly: the group size should be clearly explained, for example, 0-10, 10-20, 20-30. The question cannot be explained; the suggestion is less than 10, 10-19.99, and 20-29.99.

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16. Instance

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17. Correlation relative relationship

 

• Two variables match or do not match the expected mode

> Scatter plots are commonly used.

> Paired bar chart

 

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18. Six scatter chart Modes

 

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19. A good chart should follow a certain standard format

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3. Concept charts

1. Talk with concepts and Metaphors

 

• Category

> Conceptual Visual View

> Visual Metaphor

• Conceptual Visual View

> Abstract geometric figures, such as arrows, circles, and triangles

• Visual Metaphor

> Use some graphics to express information, such as a maze representation problem

> A ladder represents progress and difficulties, a meeting room represents a meeting, and so on.

 

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2. Create a trilogy of conceptual visual images

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2.1 search for keywords

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2.2 search for keywords

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2.3 search for keywords

 

 

 

 

 

 

 

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2.4 search for keywords

 

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3. graphic application example

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4. Add the title and Explanation

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4.1 Add title and Explanation

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5. Visual Metaphor

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5.1 Visual Metaphor

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5.2 Visual Metaphor

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4. ppt plotting skills

1. The use of PPT requires three concepts

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2. Efficiency concept-shortcuts

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3. How to quickly draw images?

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4. Concept of Space-balance and harmony

 

• We must make these entities look more balanced in the PPT. Which one is better?

• Issues to be considered before drawing a PPT

> How much information is transmitted in a film in what order?

> Display several images, tables, and images;

> Do you want to add new images?

 

 

 

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5. Process concept-reduce the drawing time to ensure harmony and good scalability

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