DataViewSchema.Column Struct

Definition

Namespace:

Microsoft.ML

Assembly:

Microsoft.ML.DataView.dll

Package:

Microsoft.ML.DataView v3.0.1

This class describes one column in the particular schema.

public struct DataViewSchema.Column

type DataViewSchema.Column = struct

Public Structure DataViewSchema.Column

Inheritance

ValueType

DataViewSchema.Column

Properties

Annotations	The annotations of the column.
Index	The column's index in the schema.
IsHidden	Whether this column is hidden (accessible only by index).
Name	The name of the column.
Type	The type of the column.

Methods

ToString()

Extension Methods

GetKeyValues<TValue>(DataViewSchema+Column, VBuffer<TValue>)	Stores the key values of the input column into the provided buffer, if this is of key type and whose key values are of ItemType whose RawType matches TValue. If there is no matching key valued annotation this will throw an exception.
GetSlotNames(DataViewSchema+Column, VBuffer<ReadOnlyMemory<Char>>)	Stores the slots names of the input column into the provided buffer, if there are slot names. Otherwise it will throw an exception.
HasKeyValues(DataViewSchema+Column, PrimitiveDataViewType)	Returns true if the input column is of VectorDataViewType, and that has SlotNames annotation of a VectorDataViewType whose ItemType is of TextDataViewType, and further whose Size matches this input vector size.
HasSlotNames(DataViewSchema+Column)	Returns true if the input column is of VectorDataViewType, and that has SlotNames annotation of a VectorDataViewType whose ItemType is of TextDataViewType, and further whose Size matches this input vector size.
IsNormalized(DataViewSchema+Column)	Returns true if and only if column has IsNormalized annotation set to true.