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  • ReadDataFrame(R) Method (Int32, Boolean)
DataStreamReadDataFrameR Method (Int32, Boolean)Extreme Optimization Numerical Libraries for .NET Professional
Reads a data frame from the file.

Namespace: Extreme.Data
Assembly: Extreme.Data (in Extreme.Data.dll) Version: 1.0.16170.0 (1.0.16170.0)
Syntax

C#
VB
C++
F#
Copy
public DataFrame<R, string> ReadDataFrame<R>(
	int keyColumn,
	bool dropIndexColumn = true
)
Public Function ReadDataFrame(Of R) ( 
	keyColumn As Integer,
	Optional dropIndexColumn As Boolean = true
) As DataFrame(Of R, String)
public:
generic<typename R>
DataFrame<R, String^>^ ReadDataFrame(
	int keyColumn, 
	bool dropIndexColumn = true
)
member ReadDataFrame : 
        keyColumn : int * 
        ?dropIndexColumn : bool 
(* Defaults:
        let _dropIndexColumn = defaultArg dropIndexColumn true
*)
-> DataFrame<'R, string> 

Parameters

keyColumn
Type: SystemInt32
The index of the column that serves as the index of the data frame.
dropIndexColumn (Optional)
Type: SystemBoolean
Optional. Specifies whether the column that contains the row keys should be dropped from the data frame. The default is .

Type Parameters

R
The type of the row keys of the data frame.

Return Value

Type: DataFrameR, String
A data frame containing the data in the file.
Exceptions

ExceptionCondition
ArgumentOutOfRangeException

keyColumn is less than zero or greater than or equal to the number of columns in the data frame.

InvalidCastException

The elements in the key column can not be converted to the key type R.

Version Information

Numerical Libraries

Supported in: 6.0
See Also

Reference

DataStream Class
ReadDataFrame Overload
Extreme.Data Namespace

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