---
title: "concatTensors(_:dimension:name:)"
framework: metalperformanceshadersgraph
role: symbol
role_heading: Instance Method
path: "metalperformanceshadersgraph/mpsgraph/concattensors(_:dimension:name:)"
---

# concatTensors(_:dimension:name:)

Creates a concatenation operation and returns the result tensor.

## Declaration

```swift
func concatTensors(_ tensors: [MPSGraphTensor], dimension dimensionIndex: Int, name: String?) -> MPSGraphTensor
```

## Parameters

- `tensors`: The tensors to concatenate.
- `dimensionIndex`: The dimension to concatenate across, must be in range: -rank <= dimension < rank.
- `name`: The name for the operation.

## Return Value

Return Value A valid MPSGraphTensor object

## Discussion

Discussion Concatenates all input tensors along the specified dimension. All inputs must be broadcast compatible along all other dimensions, and have the same datatype.