Building Forecasts from Decomposition
Visualize how trend projection and seasonal patterns combine to create forecasts
1
Project Trend
Use linear extrapolation to extend the trend component into future periods
2
Repeat Seasonal
Apply the 12-month seasonal pattern to forecast periods
3
Combine
Multiply (or add) components to create final forecast
Model:
Multiplicative (T × S)
Additive (T + S)
Forecast Horizon:
6 months
12 months
24 months
Animate Forecast Building
Step-by-Step Forecast Construction
Historical Data
Projected Trend
Seasonal Pattern
Final Forecast
Click "Animate Forecast Building" to see the three-step process in action.