Introduction to Data Visualization

What is data visualization?

• Any graphic representations of data to derive actionable insights.

• Business Intelligence

• The process of helping people understand patterns, trends, and insights by transforming data into a visual context.

• Data Analytics

How to analyze data using visualization?

• There are hypotheses

• Can be used for verification or falsification

• Data exploration

• Communication of the results

State the type of data visualization of the following visuals:

1. 1. Dashboards

2. 2. JavaScripts charting

3. 3. Geographic Information System (GIS) maps

(a)  

Which of the following questions is the key for framing data visualization

• Who is your audience?

• What is the data type?

• How will you optimize the model?

• How much the budget?

Which suitable chart you should use if you want to show the relationship for discrete data?

• Bubble chart

• Scatter Plot

• Radar chart

• Histogram

Which of the followings is not a part of data visualization pipeline?

• Data transformations

• Visual mappings

• View transformations

• Data wrangling

How to visualize qualitative data?

• Histogram

• Word clouds

• Dendrogram

• Pie chart

This visual is showing the _______ of the data.

• Comparison

• Composition

• Distribution

• Relationship

Data of selected categories ordered along a scale is known as ________.

• Nominal

• Ordinal

• Discrete

• Continous

A popular way to represent reviews data is called (a)   analysis.