Bar chart
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Bar charts are one of the most common types of data visualisation. With them, you can quickly highlight differences between categories, clearly show trends and outliers, and reveal historical highs and lows at a glance. Bar charts are especially effective when you have data that can be split into multiple categories.
Use bar charts to:
Comparing data across categories. Bar charts are best suited for data that can be split into several groups. For example, volume of shirts in different sizes, website traffic by referrer and percentage of spending by department.
Tips:
Include multiple bar charts on a dashboard. Comparing several bar charts at the same time is much easier than trying to spot patterns across multiple slides.
Add colour to bars for more impact. Colour adds a quick visual identifier that makes deep comparisons easy.
Use stacked bars or side-by-side bars. Stacked and side-by-side bar charts let you break down your data even further, giving more depth to your analysis.
Combine bar charts with maps. Maps are a powerful and intuitive way to visualise data. Using a map as a filter lets viewers drill down and find detailed answers.
Put bars on both sides of an axis. Plotting positive and negative data points along the same axis makes trends and outliers stand out.
Try Pareto analysis by combining bar charts with table calculations. Use table calculations to create a Pareto chart, showing the accumulation of multiple categories.