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Inspect Seasonality

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This component calculates autocorrelation with Pearson Correlation for lagged copies of time series. Additionally, it produces an interactive view that displays the Autocorrelation Function (ACF) Plot, Partial Autocorrelation Function (PACF) Plot, and detects the first local maximum of correlation for sign of dominant seasonality. 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 JavaScript Views (https://hub.knime.com/knime/extensions/org.knime.features.js.views/latest) KNIME Math Expression (JEP) (https://hub.knime.com/knime/extensions/org.knime.features.ext.jep/latest)

Component details

Input ports
  1. Type: Table
    Input Table
    Data containing selected column for the Autocorrelation Function (ACF) and Partial Autocorrelation Function (PACF) analysis.
Output ports
  1. Type: Flow Variable
    Data Table of detected local maximum
    This table contains a list of detected local maximum, their corresponding correlation, and lag value.
  2. Type: Table
    Flow Variable containing seasonality lag
    This flow variable contains the lag value where the dominant seasonality might occur.