Fill empty cells by forward-fill, constant, or group mean
Fills empty/null cells per column using a strategy: carry the previous value forward, the next value back, a constant, or a group mean/median.
| Field | Description |
|---|---|
| Input variablerequired | Which variable to use as the upstream dataset to read. |
| Strategy | forward-fill, back-fill, constant, or group statistic — per column. |
| Output variable namerequired | Name this node's result so downstream nodes can select it. Auto-suggested; edit freely. |
Open the node's real configuration, run it on the sample below, and see the result. Nothing is saved.
Sample input · data
| day | qty |
|---|---|
| 1 | 5 |
| 2 | |
| 3 | 8 |
| 4 |
This is a live preview — the sample and results are temporary and never saved.