# tensorflow::ops::SparseSegmentSumWithNumSegments Class Reference

# tensorflow::
ops::
SparseSegmentSumWithNumSegments

`
#include <math_ops.h>
`


Computes the sum along sparse segments of a tensor.

## Summary


Like
`
https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum#classtensorflow_1_1ops_1_1_sparse_segment_sum
`
, but allows missing ids in
`
segment_ids
`
. If an id is missing, the
`
output
`
tensor at that position will be zeroed.


Read
[the section on segmentation](https://tensorflow.org/api_docs/python/tf/sparse#Segmentation)
for an explanation of segments.


For example:


```
c = tf.constant([[1,2,3,4], [-1,-2,-3,-4], [5,6,7,8]])
```

<br />


```
tf.sparse_segment_sum_with_num_segments(
    c, tf.constant([0, 1]), tf.constant([0, 0]), num_segments=3)
# => [[0 0 0 0]
#     [0 0 0 0]
#     [0 0 0 0]]
```

<br />


```
tf.sparse_segment_sum_with_num_segments(c,
                                        tf.constant([0, 1]),
                                        tf.constant([0, 2],
                                        num_segments=4))
# => [[ 1  2  3  4]
#     [ 0  0  0  0]
#     [-1 -2 -3 -4]
#     [ 0  0  0  0]]
```

<br />


Args:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- indices: A 1-D tensor. Has same rank as `
  segment_ids
  ` .
- segment_ids: A 1-D tensor. Values should be sorted and can be repeated.
- num_segments: Should equal the number of distinct segment IDs.

<br />


Returns:

- `
  https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output
  ` : Has same shape as data, except for dimension 0 which has size `
  num_segments
  ` .

<br />

| ### Constructors and Destructors ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1aa42ca6fe6f82686ab6e7bf1696c6cf95 (const :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input data, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input indices, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input segment_ids, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input num_segments) ` ||

| ### Public attributes ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1aef731be5257efe05dd4fcab3b8bc1a97 ` | ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a0268bacaeeeaa16b2034d2bbbce8fbe4 ` | ` :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output ` |

| ### Public functions ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a26167428eac960c8c69c07839a55d289 () const ` | ` ::tensorflow::Node * ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a59838fffe06404d59d3a86d7a1a664ab () const ` | ` ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/sparse-segment-sum-with-num-segments#classtensorflow_1_1ops_1_1_sparse_segment_sum_with_num_segments_1a0540eaea9f382d555400bcda1f86c781 () const ` | ` ` |

## Public attributes

### operation

```
Operation operation
```

### output

```
::tensorflow::Output output
```

## Public functions

### SparseSegmentSumWithNumSegments

```
 SparseSegmentSumWithNumSegments(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input data,
  ::tensorflow::Input indices,
  ::tensorflow::Input segment_ids,
  ::tensorflow::Input num_segments
)
```

### node

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

### operator::tensorflow::Input

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

### operator::tensorflow::Output

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