<!--
{
  "availability" : [
    "iOS: 15.0.0 -",
    "iPadOS: 15.0.0 -",
    "macCatalyst: 15.0.0 -",
    "macOS: 12.0.0 -",
    "tvOS: 15.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 8.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "TabularData",
  "identifier" : "/documentation/TabularData/RowGrouping/subscript(_:)-5z2eg",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Subscript",
  "symbol" : {
    "kind" : "Instance Subscript",
    "modules" : [
      "TabularData"
    ],
    "preciseIdentifier" : "s:11TabularData11RowGroupingVyxSg3key_AA0B5FrameV5SliceV5grouptSicip"
  },
  "title" : "subscript(_:)"
}
-->

# subscript(_:)

Retrieves a group at an index.

```
subscript(position: Int) -> (key: GroupingKey?, group: DataFrame.Slice) { get }
```

## Parameters

`position`

A valid index to a group in the row grouping.

---

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)