-(_:_:)
Creates a column of doubles by subtracting each element in the second column from the corresponding element in the first column.
Declaration
static func - (a: MLDataColumn<Double>, b: MLDataColumn<Double>) -> MLDataColumn<Double>Parameters
- a:
A column of doubles.
- b:
A column of doubles.
Return Value
A new column of doubles if the columns are the same size; otherwise an invalid column.