<!--
{
  "availability" : [
    "iOS: 16.0.0 -",
    "iPadOS: 16.0.0 -",
    "macCatalyst: 16.0.0 -",
    "macOS: 13.0.0 -",
    "tvOS: 16.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 11.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CreateMLComponents",
  "identifier" : "/documentation/CreateMLComponents/ColumnConcatenator/init(columnSelection:concatenatedColumnName:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "Create ML Components"
    ],
    "preciseIdentifier" : "s:18CreateMLComponents18ColumnConcatenatorV15columnSelection012concatenatedC4NameACyxGAA0cF0O_SStcfc"
  },
  "title" : "init(columnSelection:concatenatedColumnName:)"
}
-->

# init(columnSelection:concatenatedColumnName:)

Creates a concatenator that concatenates numeric columns into a new column of ML shaped array.

```
init(columnSelection: ColumnSelection = .all, concatenatedColumnName: String = "features")
```

## Parameters

`columnSelection`

A selection of columns to concatenate.

`concatenatedColumnName`

The name of the resulting shaped array column.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)