Area · Signed stacked areas

Accumulate positive and negative values separately.

Use areas when the magnitude and trend matter. Overlapping series are not stacked. The value axis includes zero by default; an explicit domain clips the fill.

Provide ordered category, numeric or UTC-time X values and nullable Y values. By default a gap breaks the fill; it is never converted to zero.

Use line markers, shared detail, references, side legends and viewport controls. Set options.layout.stacking to sum or percent for stacked areas. Missing contributions break the entire row; percent rejects negative values.

• Overlapping areas
• Stack totals
• Stacked areas
• 100% areas
• Stacked areas with gaps
• Signed stacked areas
• Gaps in the fill
• Signed areas
• Volume over dates

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