Stacked area (spline)

Overview

The stacked area (spline) widget combines the stacked area chart with spline curves. It stacks multiple series values vertically and displays them with smooth curves instead of straight lines. It is suitable for visualizing overall stacking trends and proportions between series with natural curves.

For general information about query widgets, see Query widget.

Chart settings

Select Stacked Area (Spline) as the chart type in the pivot table editor and click the chart settings button.

Variables

• Independent Variable: Select the field to display on the X-axis.
• Auto-Select: Automatically select all numeric fields as dependent variables.
• Dependent Variable(s): Specify dependent variables manually.

View

• Zoom-In: Select the direction for drag-to-zoom (default: None, options: x, y, xy).
• Concatenate Empty Values: Connect data points across empty intervals.

Chart

• Headline: Enter a chart title and subtitle.
• Chart Area: Set the background color, border thickness, and border color.

Axis

• X-axis: Set the title and format.
• Y-axis: Set the title, format, min, and max.

Series

• Chart Type: Override the series chart type (default: Auto).
• Series Color: Set the series color.
• Border Style: Select the line style.
• Show Point Marker: Set whether to display markers.

Label

• Label All Series: Display values above data points.

Legend

• Show: Set whether to display the legend.
• Legend Arrangement: Options: Horizontal, Vertical.
• Horizontal Align / Vertical Align: Set the legend position.

Event

Configure click and drag events.