About
If time series is a kite,
- Trend: String that “pulls” or “leads” the kite to its “expected” path
- Seasonal: The wind is always stronger at noon because the sun is out. (Predictable by time).
- Cyclical: A “Storm System” is passing through. The wind howls for 3 days, then it’s calm for 10 days, then another storm lasts for 5 days. It is a long-term wave of energy that lingers, but there is no calendar for when the next storm starts.
- Irregular: unpredictable deviations