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Charts

The Charts tab displays any logged numerical series, that is FloatSeries attributes.

You can view multiple charts at once, or maximize the space of a single chart for deeper analysis. A customizable legend helps analyze runs without leaving the tab.

Dashboard with charts in Neptune

How to log a numerical series?
from neptune_scale import Run

run = Run()

for step in epoch:
    # your training loop
    run.log_metrics(
        data={"loss": 0.14},
        step=step,
    )

To log several metrics at once, pass multiple key-value pairs:

run.log_metrics(
    data={"loss": 0.14, "acc": 0.78},
    step=step,
)

Comparing grouped runs​

While showing experiments in Group mode in the experiments table, you can represent each group as a single line.

To compare grouped runs:

  1. Switch to the Charts tab.
  2. Open Controls → Grouped and inherited metrics.
  3. Toggle Average grouped runs.

How to switch to group mode in the Neptune app.

Filtering charts​

You can filter the displayed charts by attribute names using search terms or regular expressions.

To apply multiple regular expressions:

  1. In the top menu, type in a pattern and press Enter.
  2. Type out one of the special operators, AND or AND NOT, and press Enter.
  3. Enter another pattern.
tip

To edit a part of the expression, double-click it.

Modifying charts​

You can configure settings that apply to all charts displayed in the Charts tab.

note

This global configuration is stored by your browser. To let other users see your changes, export the modified charts to a dashboard or report.

Apply smoothing​

To apply smoothing to the charts, open Controls → Smoothing and use the slider.

For details, see Downsampling and smoothing.

Change axis settings​

You can specify the following axis settings:

  • For X and Y axes, change the scale to linear or logarithmic.

    To display local settings instead, change the scale to Unselected.

  • For X axis, define the range.

To customize the Y and X axes, open Controls → Axis settings.

Change X-axis values​

By default, the X axis is set to steps. To change it for all charts, open Controls → Series. You can choose from the following:

  • step, relative time, or absolute time,
  • one of the logged metrics.

Filter data by step range​

You can limit the displayed data to the specified step range.

To set the steps on the X axis of the charts:

  1. Open Controls.
  2. In Filter data based on step, specify the range of steps to include.

Restore default settings​

When you configure settings that apply to all charts, you override the settings configured on the widget level.

To go back to viewing the charts configured individually, in Controls, select Reset to defaults.

Zooming the chart​

To zoom in, click and drag over an area of the chart.

To reset the zoom, double click anywhere on the chart.

Exporting charts​

To export all visible charts to a new or existing dashboard or report, select Duplicate.

  • Dashboard: Saves the set of charts as a template that you can apply to any visible runs.
  • Report: Saves the set of charts, including which runs are visible.

The result snapshots the attribute names that match the search query at the time. A dashboard or report doesn't dynamically update if new metric names appear and they match the originally used filter.

Exporting selected widgets​

To export only selected charts:

  1. Check the boxes on the widgets that you want to export.

  2. In the toolbar that appears, choose an export option from the Duplicate selected dropdown menu.

    To verify the widgets that you're about to export, expand the toolbar.