---
title: "init(transformers:columnMapping:)"
framework: createmlcomponents
role: symbol
role_heading: Initializer
path: "createmlcomponents/columnselectortransformer/init(transformers:columnmapping:)"
---

# init(transformers:columnMapping:)

Creates a select transformer.

## Declaration

```swift
init(transformers: [String : Base], columnMapping: [String : String] = [:])
```

## Parameters

- `transformers`: A dictionary of column names to transformers.
- `columnMapping`: A mapping of input column names to output column names.