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Preventing Interpolation Across Batch/Capsule Boundaries

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  • Seeq Team

A question came up recently that I thought would be of wider interest: how can I prevent interpolation across batch/capsule boundaries?

In batch processes, lab samples are often taken periodically throughout the course of a batch. When viewing these samples in Seeq, you may encounter times when samples are interpolating between batches rather than just within a batch. In the image below, the periods highlighted in yellow correspond to this unwanted interpolation.


The following formula is one way of preventing this interpolation. $signal corresponds to your signal of interest and $condition corresponds to your batches you want to prevent interpolation across.


This results in the following signal that has our desired behavior:


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