Seasonal component

A time series is seasonal if in specific "seasons" of the year ("January", "Quarter 1", "Summer", etc.), it consistently acts different than others.

The only difference is...

  • Seasonal = Patterns within one year
  • Cyclical = Patterns within 1+ years

Notice how every first quarter ("Q1"), the value spikes above the others? This is a seasonal component of this time series.

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