7 a] What is the need of Data Visualization? Explain its importance.
Introduction to Data Visualization
Computers and smartphones store data such as names and numbers in a digital format. Data representation refers to the form in which you can store, process, and transmit data. Representations can narrate a story and convey fundamental discoveries to your audience. Without appropriately modeling your information to use it to make meaningful findings, its value is reduced. Creating representations helps us achieve a more precise, more concise, and more direct perspective of information, making it
easier for anyone to understand the data. Information isn’t equivalent to data. Representations are a useful apparatus to derive insights from the data. Thus, representations transform data into useful information.
The Importance of Data Visualization
Instead of just looking at data in the columns of an Excel spreadsheet, we get a better idea of what our data contains by using visualization. For instance, it’s easy to see a pattern emerge from the numerical data that’s given in the following scatter plot. It shows the correlation between body mass and the maximum longevity of various animals grouped by class. There is a positive correlation between body mass and maximum longevity:
Visualizing data has many advantages, such as the following:
- Complex data can be easily understood.
- A simple visual representation of outliers, target audiences, and futures markets
can be created. - Storytelling can be done using dashboards and animations.
- Data can be explored through interactive visualizations.