What it is
We’ve introduced a new visual improvement to the KPI Channel Change chart:
bar chart capping using the IQR method. This update ensures extreme values (outliers) don’t skew your dashboard—so your charts stay readable, trustworthy, and presentation-ready.
Why we introduced it
We heard your feedback: extremely high or low values in KPI dashboards were making it hard to read the charts, trust the insights, and share screenshots with stakeholders.
Our solution? A simple yet statistically sound approach to cap extreme bars using the IQR method—to keep graphs clean, readable, and insight-driven.
What’s the Problem?
Outliers (like a CAC of £10,000 or a ROAS of 400x) distort your charts. That:
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Makes it harder to spot real trends
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Undermines confidence in the model
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Creates messy screenshots for internal reports
What’s the fix?
We’ve applied IQR-based capping to the KPI Channel Change chart to reduce the visual impact of outliers. This ensures:
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More consistent and readable bar sizes
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Easier comparison across channels
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Trustworthy visuals for your teams and execs
You'll see a tooltip ("Bar capped for scale") when hovering on capped values, and a banner so you know when capping is applied.
Why we Chose IQR
IQR (Interquartile Range) is a well-established statistical method that detects extreme values while preserving the integrity of your data.
It’s the sweet spot between simplicity, accuracy, and transparency.
Pros:
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No assumptions about data distribution
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Works well for skewed marketing data
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Easy to interpret and explain
What we don’t do:
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We don’t hide or delete data
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We don’t cap calculated metrics like ROAS or CPP directly
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We don’t apply capping to Share of Spend or non-KPI charts
What’s in it for you?
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Clean charts that tell a clearer story
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Smarter screenshots for stakeholder decks
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More trust in your marketing data at a glance
Where it shows up
Look for the update on the KPI Channel Change chart under “Channel Performance & Spend.”
Share of Spend charts remain uncapped as per your feedback.
Target lines may not appear if the target value falls outside of the chart’s capped range.
