Open Data — Volume Bar
Vertical bar chart for comparing volume/count metrics across categories in government open-data sets. Self-contained Chart.js scaffold with header, source attribution, and responsive layout. Designed for agency spending, congressional activity, federal awards, regulatory data and
Template details
- chart
- bar
- open-data
- government
- chartjs
When to use this template
This visualization excels at revealing the relative magnitudes of a single metric across distinct categories. Analysts use it to quickly identify which categories are largest or smallest, pinpointing areas of high or low activity, resource allocation, or impact within a defined scope.
- Tabular data with one categorical and one quantitative column.
- Discrete, non-overlapping categories for comparison.
- Quantitative values representing counts, sums, or volumes.
- Moderate number of categories (typically 5-20) for clear comparison.
- Cross-sectional data, comparing values at a single point in time.
- Positive quantitative values, as bars originate from zero.