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subscript(_:_:)

Retrieves a column with the specified name and type.

Declaration

subscript<T>(columnName: String, columnType: T.Type) -> MLDataColumn<T>? where T : MLDataValueConvertible { get }

Parameters

  • columnName:

    The name of the column to extract.

  • columnType:

    The underlying type of the column’s content.

Return Value

A new MLDataColumn with the specified name and type, if it exists; otherwise nil.

Overview

Use this subscript to get a typed MLDataColumn, which is easier to work with than a MLUntypedColumn returned from subscript(_:).

See Also

Accessing columns