DataFrameTabulate(String, String, FuncIDFColumn, String) Method

Tabulates the results of applying the given delegate to the values in the specified data column for each level of the specified factor.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

Copy

public DataFrame Tabulate(
	string factorColName,
	string dataColName,
	Func<IDFColumn, string> function
)

Public Function Tabulate ( 
	factorColName As String,
	dataColName As String,
	function As Func(Of IDFColumn, String)
) As DataFrame

public:
DataFrame^ Tabulate(
	String^ factorColName, 
	String^ dataColName, 
	Func<IDFColumn^, String^>^ function
)

member Tabulate : 
        factorColName : string * 
        dataColName : string * 
        function : Func<IDFColumn, string> -> DataFrame

Parameters

factorColName String: The name of the column for the grouping factor.
dataColName String: The name of the data column.
function FuncIDFColumn, String: A delegate that takes a data frame column and returns a string.

Return Value

DataFrame
A new data frame.

Exceptions

Exception	Condition
InvalidArgumentException	Thrown if the given factor or data column names do not exist in this data frame.

Remarks

The returned data frame has row keys containing the sorted, unique factor levels as strings. The only column, a DFStringColumn named Results, contains the results of applying the given delegate to the values in the data column tabulated for each level of the factor.
A final row is appended, with key Overall, containing the results of applying the given delegate to all values in the data column.

Reference

DataFrame Class

Tabulate Overload

CenterSpace.NMath.Core Namespace