Data
Definition
Namespace: Numerics.NET.DataAnalysis
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.8.0
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.8.0
Overload List
| Clear | Clears explicit roles assigned to columns selected by a selector. |
| Clear | Clears any explicit role assigned to the specified column. |
ClearColumnRole(ColumnSelector)
Clears explicit roles assigned to columns selected by a selector.
public DataFrame<R, C> ClearColumnRole(
ColumnSelector selector
)Parameters
- selector ColumnSelector
- The selector that identifies columns to update.
Return Value
DataFrame<R, C>The current data frame.
Remarks
The selector is resolved against a current schema snapshot. Empty selector results are no-ops. Later schema snapshots reflect the cleared roles; previously returned schema snapshots are unchanged.
Exceptions
| Argument | selector is null. |
| Key | The selector contains an explicit key that is not present in the current schema. |
| Invalid | The selector contains typed keys or a typed key predicate whose key type does not match the data frame column-key type. |
ClearColumnRole(C)
Clears any explicit role assigned to the specified column.
public DataFrame<R, C> ClearColumnRole(
C key
)Parameters
- key C
- The typed column key.
Return Value
DataFrame<R, C>The current data frame.
Remarks
After this method returns, the column role is None, which means no explicit role has been assigned.
Exceptions
| Argument | key is null. |
| Key | key is not present in the current column index. |