# tensorflow::ops::Bincount Class Reference

# tensorflow::ops::Bincount

`#include <math_ops.h>`

Counts the number of occurrences of each value in an integer array.

## Summary

Outputs a vector with length `size` and the same dtype as `weights`. If `weights` are empty, then index `i` stores the number of times the value `i` is counted in `arr`. If `weights` are non-empty, then index `i` stores the sum of the value in `weights` at each index where the corresponding value in `arr` is `i`.

Values in `arr` outside of the range \[0, size) are ignored.

Arguments:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- arr: int32 `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor`.
- size: non-negative int32 scalar `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor`.
- weights: is an int32, int64, float32, or float64 `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor` with the same shape as `arr`, or a length-0 `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor`, in which case it acts as all weights equal to 1.

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Returns:

- `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output`: 1D `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/tensor#classtensorflow_1_1_tensor` with length equal to `size`. The counts or summed weights for each value in the range \[0, size).

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| ### Constructors and Destructors ||
|---|---|
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1aab467738732ef3a8009ad662ba4d3821(const ::https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, ::https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input arr, ::https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input size, ::https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input weights)` ||

| ### Public attributes ||
|---|---|
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1ac125b9a1515efa737f727151bfeaaa73` | `::https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output` |
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1ab09a9d72c4506a6911bfbe00775dde37` | `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation` |

| ### Public functions ||
|---|---|
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1a4e41f60ef9fb7473b6aa1d8b939e11db() const ` | `::tensorflow::Node *` |
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1a3ac1f5104aacae7c5ed57e9a2094a80a() const ` | ` `` ` |
| `https://www.tensorflow.org/versions/r2.3/api_docs/cc/class/tensorflow/ops/bincount#classtensorflow_1_1ops_1_1_bincount_1a05eb54bb4dcf8b07c04cd58c4232d229() const ` | ` `` ` |

## Public attributes

### bins

```
::tensorflow::Output bins
```

### operation

```
Operation operation
```

## Public functions

### Bincount

```
 Bincount(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input arr,
  ::tensorflow::Input size,
  ::tensorflow::Input weights
)
```

### node

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

### operator::tensorflow::Input

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

### operator::tensorflow::Output

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