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Know your problem
Know your data
Visualize your data - pie charts
Work with your chart
Check yourself
19. Identify variable encoding and description


We've created a meaningful chart for our data! We started with aggregates, transformed them into percentages, and then we visualized the data using a pie chart. In connection with the transformation step, we should know what data is mapped on our chart and how it is described. Remember, we should always make sure our data encoding and chart descriptions are correct!