| Method | Description |
|---|---|
| .size() | Calculate how many rows |
| .mean() | Calculate average value |
| .mean() | Calculate median value |
| .max() | Calculate maximum value |
| .min() | Calculate minimum value |
| .std() | Calculate standard deviation value |
| .sum() | Calculate total |
| Method | Description |
|---|---|
| .first() | Take first element from each of group. |
| .las() | Take first element from each of group. |
| .rank() | Take rank on data in the group. |
| .head() | Take n first data from each of group. |
| .tail() | Calculate n last data from each of group. |
| .all() | Returns logical function AND |
| .any() | Calculate amount |
by_area_tenant.agg({"Rent" : ["min", "max", "mean"],
"Size" : ["min", "max"]})
Use to combine multiple function at different columns. We can specify then name of columns as dictionary keys, and the function as dictionary values.