I am doing the research on commercial jet aircraft, and each sample has "lease start date" and "lease end date". Using these data, I would like to transform the dataset into panel data. Is there any command which can be used for?
| ID | Type | Lease End | Lease Start |
| A | 737-800 | 2022/12/31 | 2017/1/1 |
| B | 777-300ER | ||
| C | A320 |
| ID | Type | Lease End | Lease Start | Year | Lease |
| A | 737-800 | 2022/12/31 | 2017/1/1 | 2017 | 1 |
| 2018 | 1 | ||||
| 2019 | 1 | ||||
| 2020 | 1 | ||||
| 2021 | 1 | ||||
| 2022 | 1 | ||||
| 2023 | 0 |
Mayuko Kimura
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