OptionalColumnProtocol

Declaration

protocol OptionalColumnProtocol<WrappedElement> : ColumnProtocol

Overview

OptionalColumnProtocol defines the common functionality for column types that support missing values.

Topics

Filling an Optional Column

• filled(with:)

Generating an Optional Column by Adding Two Columns

• +(_:_:)
• +(_:_:)
• +(_:_:)

Generating an Optional Column by Subtracting Two Columns

• -(_:_:)
• -(_:_:)
• -(_:_:)

Generating an Optional Column by Multiplying Two Columns

• *(_:_:)
• *(_:_:)
• *(_:_:)

Generating an Optional Column by Dividing Two Columns

• /(_:_:)
• /(_:_:)
• /(_:_:)
• /(_:_:)
• /(_:_:)
• /(_:_:)

Generating an Optional Column by Combining a Value

• +(_:_:)
• +(_:_:)
• -(_:_:)
• -(_:_:)
• *(_:_:)
• *(_:_:)
• /(_:_:)
• /(_:_:)
• /(_:_:)
• /(_:_:)

Describing an Optional Column

• description(options:)

Supporting Types

• WrappedElement

Relationships

Inherits From

• BidirectionalCollection
• Collection
• ColumnProtocol
• Sequence

Conforming Types

• Column
• ColumnSlice
• DiscontiguousColumnSlice

See Also

Typed Columns

• Column
• ColumnSlice
• FilledColumn
• DiscontiguousColumnSlice
• ColumnProtocol