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App version: 3.4.15

Error bands in charts

By default, Neptune displays the minimum and maximum values of the downsampling range as the shaded area on charts. For chart widgets in dashboards and reports, you can disable this behavior or define your own custom error bands.

Types of error bands​

The following types of error bands are available:

TypeDescription
Auto min-maxDefault setting. The bounds represent the minimum and maximum values of the downsampling range. For details, see the rendering algorithm.
SymmetricalThe same metric is used as the bound of both the upper and lower error band.
Two-sidedSeparate metrics are used for the bounds of the error bands.

Note that Neptune doesn't compute the error bands. Instead, you can configure the already logged metrics to show as custom error bands for the Y-axis series. For example, you can log your own confidence interval as a series and then visualize it in the Neptune app.

note
  • If the error band metrics don't match the steps of the the main metric, Neptune displays approximations.
  • Chart legend doesn't show metrics that represent error bands.
  • Smoothing doesn't affect custom error bands.

Show custom error bands in charts​

To add custom error bands to a chart:

  1. In a dashboard or report, add a new chart widget or edit an existing one.

  2. In Advanced settings, enable Custom error bands.

  3. For each Y-axis series plotted on the chart, use the dropdown to choose the type of custom error bands:

    • For Symmetrical, select an additional metric that represents the error band.
    • For Two-sided, select two additional metrics that represent the upper and lower bands.
note

You can't configure error bands for series that are calculated with custom expressions. This means you can't configure dynamically selected metrics as error bands.

Hide error bands in charts​

To hide error bands in charts:

  1. In a dashboard or report, add a new chart widget or edit an existing one.
  2. In Advanced settings, enable Custom error bands.
  3. For each Y-axis series plotted on the chart, from the dropdown, select Disabled.