Overview
The Combination widget combines different chart types (e.g., bars + line) with different Y-axes in a single visualization. It's ideal for displaying different metrics with varying scales simultaneously and visualizing complex relationships.
Use Cases
- Multi-Scale Metrics - Display metrics with different scales together
- Correlation Visualization - Show relationships between different measurements
- Performance Dashboards - Combine volume and rate metrics
- Complex Analysis - Multiple visualization types in one view
- Comparative Analysis - Compare different data types simultaneously
Key Features
- Multiple chart types in one widget
- Dual Y-axes
- Bar and line combinations
- Independent scaling
- Color-coded series
- Legend management
Configuration
Basic Settings
| Field | Required | Description |
|---|
| Title | ❌ No | Display name for the widget |
| Thing | ✅ Yes | Select Thing to display data from (not required for ThingType dashboards) |
| Timeframe | ✅ Yes | Time range (from/to) for data display |
| Measures | ✅ Yes | Add measures to display. Each measure requires: measure ID, aggregation, chart type (line/bar), line type (for lines) and color |
Chart Settings
| Field | Required | Description |
|---|
| Y-Axis Min | ❌ No | Minimum value for Y-axis |
| Y-Axis Max | ❌ No | Maximum value for Y-axis |
| Gapfill | ❌ No | Handle missing data (NONE, TIME, LOCF) |
| Bucket type | ✅ Yes | Choose 'dynamic' or 'fixed' time bucket aggregation |
| Bucketsize / Data density | ✅ Yes | Aggregation interval (depends on bucket type) |
| Thresholds | ❌ No | Define threshold lines with colors and values |
Display Options
| Field | Required | Description |
|---|
| Show chart markers | ❌ No | Display data point markers on lines |
| Zoom allowed | ❌ No | Enable zoom functionality (default: true) |
| Show Table | ❌ No | Display data in table format below the chart |
| Display mode | ❌ No | Choose chart, table, or split view |
| Override | ❌ No | Use widget-specific time settings instead of dashboard defaults |
| Transparent | ❌ No | Remove widget background |
| Border color | ❌ No | Custom border color |
| Background Color | ❌ No | Custom background color |
Best Practices
- Logical Grouping - Combine related metrics only
- Clear Legends - Ensure legends clearly identify series and axes
- Axis Labels - Label both Y-axes with units
- Color Coding - Use consistent colors for related data
- Limit Complexity - Don't combine too many series (max 4-5)
What's Next?