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  • Decompose Signal
ComponentComponent

Decompose Signal

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Decomposes selected Time-Series or IoT signal into Trend, 2 Seasonal Components, and the remaining Residual. Signal = T + S1 + S2 + R [T] Trend Component: is calculated by fitting a regression model through the data with degree 2. [S1] Seasonal Component 1: is calculated as the first major spike in auto-correlation. [S2] Seasonal Component 2: is calculated as the first major spike in auto-correlation after the diferencing of the first seasonality. [R] Residual: is what remains after trend and the two Seasonalities have been differenced. The interactive displays shows the first 1000 records fpr the above outputs as well as the ACF plot for the detrended signal and both subsequent series after seasonality one and two are removed. Required extensions: KNIME Python Integration (https://hub.knime.com/knime/extensions/org.knime.features.python2/latest) KNIME Quick Forms (https://hub.knime.com/knime/extensions/org.knime.features.js.quickforms/latest) KNIME Math Expression (JEP) (https://hub.knime.com/knime/extensions/org.knime.features.ext.jep/latest) KNIME JavaScript Views (https://hub.knime.com/knime/extensions/org.knime.features.js.views/latest)

Component details

Input ports
  1. Type: Table
    Signal Data
    Table containing signal column
Output ports
  1. Type: Table
    Table with Decomposed Signal
    Original table with Trend, Seasonality 1, Seasonality 2, and Residual columns added.
  2. Type: PMML
    Trend Model
    The Regression model representing the Singal's Trend

Used extensions & nodes

Created with KNIME Analytics Platform version 4.1.1
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    KNIME Core Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.1

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    KNIME Expressions Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.0

  • Go to item
    KNIME JavaScript Views Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.0

  • Go to item
    KNIME Math Expression (JEP) Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.0

  • Go to item
    KNIME Python Integration Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.1

  • Go to item
    KNIME Quick Forms Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.1.1

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