public static DataFrame<long, C> FromColumns<C>(
	IEnumerable<IVector> columns,
	IEnumerable<C> columnKeys
)

Public Shared Function FromColumns(Of C) ( 
	columns As IEnumerable(Of IVector),
	columnKeys As IEnumerable(Of C)
) As DataFrame(Of Long, C)

public:
generic<typename C>
static DataFrame<long long, C>^ FromColumns(
	IEnumerable<IVector^>^ columns, 
	IEnumerable<C>^ columnKeys
)

static member FromColumns : 
        columns : IEnumerable<IVector> * 
        columnKeys : IEnumerable<'C> -> DataFrame<int64, 'C>