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Bar Chart¶
Compare values across categories or summarize numeric columns with flexible aggregation functions.
What is a Bar Chart?¶
A bar chart displays data as vertical bars. How the bars are created depends on your data type:
- Categorical data (Nominal, DateTime) — Each unique category gets its own bar, sized by count or aggregated value. For example, a column of department names produces one bar per department.
- Numeric data (Continuous, Integer, Count) — Each column becomes a bar, with its values summarized by a function such as sum, mean, or median. For example, three columns of quarterly sales produce three bars showing totals.
Bar charts also support multiple aggregation functions (sum, mean, median, min, max, standard deviation), giving you flexibility in how values are summarized.
When to Use a Bar Chart¶
- When you want to compare counts or values across categories
- When you need to summarize numeric columns side by side
- When you want flexible aggregation — sum, mean, median, min, max, or standard deviation
- When you want to visualize grouped or stacked comparisons using multiple frequency columns
Example Output¶
A typical bar chart shows one bar per category or column, with bar height representing the aggregated value. Labels identify each bar and the Y-axis shows the scale.
Learn More¶
- Examples — Step-by-step tutorials for different scenarios
- Preparing Your Data — Data types, layouts, and the behavior matrix
- Options — All chart settings and customization options