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# tensorflow::ops::ReduceJoin

`#include <string_ops.h>`

Joins a string Tensor across the given dimensions.

## Summary

Computes the string join across dimensions in the given string Tensor of shape `[\\(d_0, d_1, ..., d_{n-1}\\)]`. Returns a new Tensor created by joining the input strings with the given separator (default: empty string). Negative indices are counted backwards from the end, with `-1` being equivalent to `n - 1`. If indices are not specified, joins across all dimensions beginning from `n - 1` through `0`.

For example:

```# tensor `a` is [["a", "b"], ["c", "d"]]
tf.reduce_join(a, 0) ==> ["ac", "bd"]
tf.reduce_join(a, 1) ==> ["ab", "cd"]
tf.reduce_join(a, -2) = tf.reduce_join(a, 0) ==> ["ac", "bd"]
tf.reduce_join(a, -1) = tf.reduce_join(a, 1) ==> ["ab", "cd"]
tf.reduce_join(a, 0, keep_dims=True) ==> [["ac", "bd"]]
tf.reduce_join(a, 1, keep_dims=True) ==> [["ab"], ["cd"]]
tf.reduce_join(a, 0, separator=".") ==> ["a.c", "b.d"]
tf.reduce_join(a, [0, 1]) ==> "acbd"
tf.reduce_join(a, [1, 0]) ==> "abcd"
tf.reduce_join(a, []) ==> [["a", "b"], ["c", "d"]]
tf.reduce_join(a) = tf.reduce_join(a, [1, 0]) ==> "abcd"
```

Arguments:

• scope: A Scope object
• inputs: The input to be joined. All reduced indices must have non-zero size.
• reduction_indices: The dimensions to reduce over. Dimensions are reduced in the order specified. Omitting `reduction_indices` is equivalent to passing `[n-1, n-2, ..., 0]`. Negative indices from `-n` to `-1` are supported.

Optional attributes (see `Attrs`):

• keep_dims: If `True`, retain reduced dimensions with length `1`.
• separator: The separator to use when joining.

Returns:

• `Output`: Has shape equal to that of the input with reduced dimensions removed or set to `1` depending on `keep_dims`.

### Constructors and Destructors

`ReduceJoin(const ::tensorflow::Scope & scope, ::tensorflow::Input inputs, ::tensorflow::Input reduction_indices)`
`ReduceJoin(const ::tensorflow::Scope & scope, ::tensorflow::Input inputs, ::tensorflow::Input reduction_indices, const ReduceJoin::Attrs & attrs)`

### Public attributes

`operation`
`Operation`
`output`
`::tensorflow::Output`

### Public functions

`node() const `
`::tensorflow::Node *`
`operator::tensorflow::Input() const `
``` ```
``` ```
`operator::tensorflow::Output() const `
``` ```
``` ```

### Public static functions

`KeepDims(bool x)`
`Attrs`
`Separator(StringPiece x)`
`Attrs`

### Structs

tensorflow::ops::ReduceJoin::Attrs

Optional attribute setters for ReduceJoin.

## Public attributes

### operation

`Operation operation`

### output

`::tensorflow::Output output`

## Public functions

### ReduceJoin

``` ReduceJoin(
const ::tensorflow::Scope & scope,
::tensorflow::Input inputs,
::tensorflow::Input reduction_indices
)```

### ReduceJoin

``` ReduceJoin(
const ::tensorflow::Scope & scope,
::tensorflow::Input inputs,
::tensorflow::Input reduction_indices,
const ReduceJoin::Attrs & attrs
)```

### node

`::tensorflow::Node * node() const `

### operator::tensorflow::Input

` operator::tensorflow::Input() const `

### operator::tensorflow::Output

` operator::tensorflow::Output() const `

## Public static functions

### KeepDims

```Attrs KeepDims(
bool x
)```

### Separator

```Attrs Separator(
StringPiece x
)```
[]
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