From: Why is Data Visualization Important? What is Important in Data Visualization by Antony Unwin, Jan 31, 2020
Data visualization is useful for data cleaning, exploring data structure, detecting outliers and unusual groups, identifying trends and clusters, spotting local patterns, evaluating modeling output, and presenting results. It is essential for exploratory data analysis and data mining to check data quality and to help analysts become familiar with the structure and features of the data before them.
Some data sites have their own tools for sorting data. These make it easy to work with the data on their site but if you would like to combine data from various sources, you will need to use other tools.
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