---
title: "==(_:_:)"
framework: createml
role: symbol
role_heading: Operator
path: "createml/mluntypedcolumn/==(_:_:)"
---

# ==(_:_:)

Creates a column of Booleans by testing whether each element in the first column is equal to the corresponding element in the second column.

## Declaration

```swift
static func == (a: MLUntypedColumn, b: MLUntypedColumn) -> MLUntypedColumn
```

## Parameters

- `a`: A column.
- `b`: A column.

## Return Value

Return Value A new column of Booleans if the columns have the same size and underlying type; otherwise an invalid column.

## See Also

### Comparing columns

- [!=(_:_:)](createml/mluntypedcolumn/!=(_:_:).md)
- [>(_:_:)](createml/mluntypedcolumn/_(_:_:)-1hr3j.md)
- [<(_:_:)](createml/mluntypedcolumn/_(_:_:)-9ke05.md)
- [<=(_:_:)](createml/mluntypedcolumn/_=(_:_:)-2i3xz.md)
- [>=(_:_:)](createml/mluntypedcolumn/_=(_:_:)-221lt.md)