Chart legend
Charts come with a configurable legend that shows additional metadata of the visible runs. To view the legend, hover over a chart in the Neptune app.
Edit the chart legend
You can edit the legend in the following ways:
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To freeze the legend in place, left click while hovering over the chart.
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To resize the legend, click and drag its bottom border.
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To include additional attributes, expand the legend and click Add.
Pinned columns are automatically displayed in a chart legend.
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To locate values among the added columns, use the search .
Note that the legend configuration applies to all charts within a project.
Multi-metric legend
In dashboards and reports, you can configure a chart widget to display multiple metrics at once. In such charts, each metric is represented by a differently styled line that you can verify in the chart legend. For better visibility, the legend also separates the metrics and groups the runs.
In reports, you can also customize the way chart widgets display metadata. For details, see Change display options.
Analyzing data points
When you hover over a chart, the X-axis marker tries to match a data point closest to your cursor's position. The chart legend uses the following symbols to indicate how the match was made:
| Symbol | Description |
|---|---|
| none | Exact match. This value was logged for the X-axis point that you hover over. |
| Approximate value, interpolated based on the values of the surrounding points that have been logged. The tilde symbol also appears next to a value that represents an aggregation of points caused by the rendering algorithm, even if it's also an exact match. |