Power BI Custom Visual
Pareto Chart for Power BI
AI-generated pareto chart for Power BI. Describe what you need in plain English; download a ready-to-import .pbiviz file. Full TypeScript source included.
A Pareto chart combines a descending bar chart with a cumulative-percentage line, making it trivial to identify the 20% of categories that produce 80% of any outcome — the classic Pareto principle. Quality, operations, and finance teams use it for root-cause analysis, cost concentration, and inventory ABC classification.
Power BI ships no dedicated Pareto visual. You can approximate one by combining a sorted bar chart and a line chart on the same axis, but the result is fiddly: the line won't lock to cumulative percentages as filters change, you can't highlight the 80% threshold, and sort order can drift on refresh.
VizForge generates a Power BI Pareto custom visual that computes cumulative percentages directly, draws the 80% reference line, and colors bars differently above vs. below threshold. The sort order is enforced regardless of the underlying data model.
When to use a pareto chart in Power BI
- Defect category analysis (which defects cause 80% of complaints?)
- Cost concentration (which vendors account for 80% of spend?)
- Revenue by customer (which customers generate 80% of revenue?)
- Inventory ABC classification
- Support ticket topic analysis
Example prompt
Example VizForge prompt
Pareto chart of defect types. Bars sorted descending by count, cumulative percentage line overlaid, horizontal reference line at 80%, bars coloured green below the cut-off and grey above.
Data shape required
Two columns: Category (text) and Value (numeric). The visual sorts descending automatically.
Typical DAX measures
Count = COUNTROWS( Defects )
Category Rank =
RANKX(
ALL( Defects[Category] ),
[Count],,
DESC,
DENSE
)
Cumulative Count =
VAR RankHere = [Category Rank]
RETURN
CALCULATE(
[Count],
FILTER( ALL( Defects[Category] ), [Category Rank] <= RankHere )
)
Cumulative Percent =
DIVIDE( [Cumulative Count], CALCULATE( [Count], ALL( Defects ) ) )Free plan: 3 visuals per month. No credit card required.
FAQ
Where does the 80% line come from?
Hard-coded by default but configurable. Prompt for 'show 80% reference line' or a custom percentile; the visual renders a horizontal rule at that cumulative point.
Can I swap to log scale for long-tailed data?
Yes. Specify 'log-scale left axis' in the prompt when a handful of categories dwarf the rest.
Does the Pareto filter other visuals on click?
Yes — clicking a bar acts as a slicer on the rest of the page, same as native visuals.
Can it handle hundreds of categories?
Yes, but the bar thickness shrinks. For dense cases, prompt for 'bucket the long tail beyond rank N into an Other category'.
How-to guides for pareto chart
Power BI How-To
AI-First Power BI
Decision Guide
Power BI Customization
Free .pbiviz Generator
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