Calculate seasonal indices from complete cycles
A delivery depot records parcel volumes throughout each year. Each row is one complete year of quarterly observations
| Cycle | Jan–Mar | Apr–Jun | Jul–Sep | Oct–Dec |
|---|---|---|---|---|
| Year 1 | 1,071 | 729 | 1,053 | 747 |
A delivery depot records parcel volumes throughout each year. Each row is one complete year of quarterly observations
| Cycle | Jan–Mar | Apr–Jun | Jul–Sep | Oct–Dec |
|---|---|---|---|---|
| Year 1 | 1,071 | 729 | 1,053 | 747 |