Creates a new column of doubles by converting the elements of another column.
SDKs
- macOS 10.14+
- Xcode 10.0+
Framework
- Create ML
Declaration
init(doubles: MLUntypedParameters
doublesA column with elements that are convertible to doubles.
Return Value
A new untyped column of doubles; otherwise an invalid column if any element of the given column cannot be converted to Double.
Discussion
Use this initializer to create a column of doubles from another column. As an example, to create a column with this initializer, first start with a column that is convertible to doubles.
let stringColumn = MLUntypedColumn(["1.0", "2.0", "3.0", "4.0", "5.0"])
print(stringColumn)
/* Prints...
ValueType: String
Values: [1.0, 2.0, 3.0, 4.0, 5.0]
*/
Then use init(doubles:) to convert the column to a column of doubles.
let doublesColumn = MLUntypedColumn(doubles: stringColumn)
print(doublesColumn)
/* Prints...
ValueType: Double
Values: [1.0, 2.0, 3.0, 4.0, 5.0]
*/