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Overview

Channels in a Timeseries Panel use the Largest Triangle Three Buckets (LTTB) downsampling method by default, which preserves the overall shape of a signal. Other downsampling methods are also available. Each Channel has its own downsampling method. Changing one Channel does not affect the others. You can select multiple Channels and apply the same method to them at once.

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Instructions

To apply a different sampling method to a single Channel:
  1. In a Timeseries Panel, click Settings.
  2. Click the Channel tab.
  3. Locate the Channel you want to change.
  4. Click Expand.
  5. In the Sampling method list, select a method.
  6. Click Apply changes.

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Settings

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Sampling method

Controls how data points are reduced when a Channel contains more data than can be displayed.
  • LTTB: Selects representative points to preserve the overall shape of the signal. Best for general visualization of numeric Channels.
  • Min/Max: Returns the minimum and maximum values within each interval. Preserves true peaks and valleys. Best for anomaly detection and monitoring extremes.
  • Changed Only: Returns only points where the value changes. Best for enum and boolean Channels where state transitions must be preserved.