DataFrameR, CRenameColumn Method (IEnumerableC, IEnumerableC)

Extreme Optimization Numerical Libraries for .NET Professional

Renames the specified column.

Namespace: Extreme.DataAnalysis
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1

Syntax

C++

Copy

public DataFrame<R, C> RenameColumn(
	IEnumerable<C> oldKeys,
	IEnumerable<C> newKeys
)

Public Function RenameColumn ( 
	oldKeys As IEnumerable(Of C),
	newKeys As IEnumerable(Of C)
) As DataFrame(Of R, C)

public:
DataFrame<R, C>^ RenameColumn(
	IEnumerable<C>^ oldKeys, 
	IEnumerable<C>^ newKeys
)

member RenameColumn : 
        oldKeys : IEnumerable<'C> * 
        newKeys : IEnumerable<'C> -> DataFrame<'R, 'C>

Parameters

oldKeys: Type: System.Collections.GenericIEnumerableC
A sequence of the current column keys.
newKeys: Type: System.Collections.GenericIEnumerableC
A sequence of the corresponding new column keys.

Return Value

Type: DataFrameR, C
The current data frame with the specified keys in the column index replaced.

Exceptions

Exception	Condition
KeyNotFoundException	One or more of the keys in oldKeys were not found in the column index.
InvalidOperationException	One or more of the keys in newKeys already exists in the column index and is not replaced.

Reference

DataFrameR, C Class

RenameColumn Overload

Extreme.DataAnalysis Namespace

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