Stacked bar chart
A stacked bar chart divides each bar into segments representing component values whose combined length or height represents a total.
D3.js in Action, Third Edition
A stacked bar chart represents multiple series within each bar by vertically or horizontally adjoining segments whose combined extent encodes a total.
- How it is used
- Shows category contributions and total trends over time with segmented bars.
- How deep it goes
- Walks through stack output, scales, rectangle joins, axes, and order or offset effects.
- Examples
- Uses music-format sales by year and a rectangle data join to construct the chart.
- What you can do after
- Build it from scratch with d3.stack(), D3 scales, SVG rectangles, axes, and configurable order or offset.
Read how D3.js in Action, Third Edition explains stacked bar chart →
Everyday Data Visualization
A bar composed of segments whose combined length or height represents a total and whose segments represent components.
- How it is used
- Uses stacked bars to show totals composed of categories, then evaluates whether they serve a trend or comparison task.
- How deep it goes
- Explains practical chart-selection trade-offs and alternatives without detailing chart-construction mechanics.
- Examples
- Uses weekly avocado sales by product category, then compares individual, clustered, and dumbbell-bar alternatives across regions.
- What you can do after
- Evaluate/understand when stacking preserves a useful total and when unstacked comparisons communicate patterns more clearly.
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Starting Data Analytics with Generative AI and Python
A stacked bar plot displays multiple component values as segments accumulated within each bar.
- How it is used
- Uses composition-oriented charts to compare order-status totals across product categories.
- How deep it goes
- Explains pivoting, plotting, formatting, interpretation, and readability limits, but does not develop statistical theory.
- Examples
- Demonstrates order statuses by product category and discusses stacked alternatives for product popularity and review-score distributions.
- What you can do after
- Apply it via pandas and Matplotlib to compare totals and component distributions, then inspect crowded or misleading outputs.
Read how Starting Data Analytics with Generative AI and Python explains stacked bar chart →
Pandas Workout: 200 exercises to make you a stronger data analyst
A bar plot in which multiple component values are stacked within each bar to show a total and its parts.
- How it is used
- Uses grouped taxi data to compare totals and revenue composition across months, years, or passenger counts.
- How deep it goes
- Explains grouping, component selection, summation, and stacked plotting, but does not develop chart customization beyond size and legend.
- Examples
- Uses New York taxi revenue components grouped by year-month and passenger count.
- What you can do after
- Build it from scratch by aggregating component columns and calling pandas plot.bar with stacked=True.
Data Storytelling with Altair and AI
A stacked bar chart displays categorical quantities as segments within bars so component values form a total.
- How it is used
- Communicates how categorical components contribute to a total and helps audiences grasp an extracted insight quickly.
- How deep it goes
- Explains category selection, percentage calculation, reshaping, encodings, and scale limitations, but defers deeper visualization theory.
- Examples
- Uses pet participation percentages and competition times reshaped into stacked series as concrete charting examples.
- What you can do after
- Builds a stacked bar chart from tabular data and revises the design when scale differences prevent effective comparison.
Read how Data Storytelling with Altair and AI explains stacked bar chart →
Related concepts
- base chartimplemented by · A base chart is a chart specification containing shared encodings and properties from which related charts are constructed.
- d3.stackOffsetExpandconfigured by · d3.stackOffsetExpand is a D3 stack offsetting constant that normalizes each stack column so its series sum is one.
- grouped bar chartproduces · A grouped bar chart displays multiple bars together for each category, enabling comparisons across subcategories or related groups.
- band scaleused by · A band scale maps discrete input values to continuous positions while allocating an equal-width band for each input value.
- line plotalternative to · A line plot is a chart that connects ordered data values with line segments to show changes, relationships, or trends.
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