Stacked Area Chart

Stacked area charts are a visualization used to display how individual components contribute to a cumulative total over time or across categories. They extend the standard area chart by stacking multiple data series on top of one another, making it easy to compare both overall trends and the proportion of each series within the total.

You can use stacked area charts to visualize the distribution and change of multiple variables simultaneously, showing not only total growth but also how each contributing category changes relative to the whole.

You can use stacked area charts to display data such as sales by product category over time, website traffic by source across months, or expense breakdown by department throughout the year.

This topic explains how to create and customize data tables and explains the most frequently used properties. Refer to the reference for all the column chart properties and configuration options.

Create a Stacked Area Chart

To create a stacked area chart, click on the Plus (+) button, opening the dropdown from which you can select your chart.

Bind Data to Stacked Area Chart

For a stacked area chart, you need to determine the following bindings:

Values (Y-Axis): The quantitative data displayed on the y-axis. Typically, this represents numeric measures such as Sales, Profit, or Quantity.
Axis (Category / X-Axis): The categorical or continuous data displayed on the x-axis. Typically, this represents grouped or sequential categories such as Month, Year, Region, or Product.
Legend (Series): The dimension that defines the separate stacked areas within the chart. Each unique value in this field creates an individual layer (or area) within the stack, allowing you to compare how each series contributes to the cumulative total.

Once your data source is selected, all data attributes appear in the Data Binding tab. You can drag the following to the binding slots of the chart:

Data attribute: Drag and drop any field from the data source.
Measure: Hover over the data source table name, click the gear icon (⚙), and select Add measure…. Define a name and an expression, click OK, then drag the measure to a binding slot.
Calculated column: Hover over the data source table name, click the gear icon (⚙), and select Add calculated column…. Define your calculation, click OK, then drag it to a binding slot.

Add Aggregations

You can control how data is aggregated and labeled in the chart:

Aggregation method: Click the gear icon (⚙) next to a bound data attribute, and select an aggregation type (e.g., Sum, Average, Count).
Rename data attribute: Click the gear icon (⚙) next to a bound data attribute and select Rename to modify how it appears in the chart.

Set Chart Title

By default, Wyn generates a chart title based on the selected data attributes.

You can modify this title in the Inspector Panel:

Click the gear icon (⚙) next to the Data Binding tab to open the Inspector Panel.
Under Title, type a custom title for your chart.

Note: Once a custom title is entered, changes to the data attributes will no longer automatically update the chart title.

To include more details in the chart’s tooltip, drag one or more data attributes into the Tooltip binding slot.

Tooltips appear when hovering over chart elements, providing contextual details without cluttering the chart area.

Customize Colors

You can adjust the color scheme of your stacked area chart in Inspector Panel > Chart Style > Palette.

Choose from:

Theme: A seven-color palette based on a theme.
Standard: A set of predefined seven-color palettes.
Custom: Define your own palette to match brand colors or visualization standards.

Build a Chart Trellis

A trellis column layout (also known as a small multiples view) creates a set of individual charts arranged horizontally. Each chart represents a subset of the data, determined by the field you assign.

To create a series of trellis column charts, drag a data attribute into the Trellis Columns binding slot. Each unique value in that field generates a separate chart displayed in columns across the dashboard.

A trellis row layout arranges multiple charts vertically, each showing a subset of data for a particular category or group.

To create a series of trellis row charts, drag a data attribute into the Trellis Rows binding slot. Each unique value generates an individual chart displayed in rows down the dashboard.