ColumnMap

Full name Microsoft.VisualBasic.DataStorage.FeatherFormat.ColumnMap Assembly Microsoft.VisualBasic.DataStorage.FeatherFormat Members 3

Utility class for addressing a dataframes columns.

01 Syntax

Microsoft.VisualBasic.DataStorage.FeatherFormat.ColumnMap

02 Properties

Name	Overloads	Summary
Count	1	Number of columns in the dataframe
Item	2	Returns the column at the given index (in the dataframe's basis).

03 Members

property Count #

Count

Number of columns in the dataframe

property Item #

Item(Int64)

Returns the column at the given index (in the dataframe's basis).

Throws if the index is out of range.

property Item overload 2 #

Item(String)

Returns the column with the given name.

Throws if no column has the given name.