# tf.raw_ops.SparseToDense

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Converts a sparse representation into a dense tensor.

#### View aliases


**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

[`tf.compat.v1.raw_ops.SparseToDense`](https://www.tensorflow.org/api_docs/python/tf/raw_ops/SparseToDense)

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    tf.raw_ops.SparseToDense(
        sparse_indices,
        output_shape,
        sparse_values,
        default_value,
        validate_indices=True,
        name=None
    )

Builds an array `dense` with shape `output_shape` such that

    # If sparse_indices is scalar
    dense[i] = (i == sparse_indices ? sparse_values : default_value)

    # If sparse_indices is a vector, then for each i
    dense[sparse_indices[i]] = sparse_values[i]

    # If sparse_indices is an n by d matrix, then for each i in [0, n)
    dense[sparse_indices[i][0], ..., sparse_indices[i][d-1]] = sparse_values[i]

All other values in `dense` are set to `default_value`. If `sparse_values` is a
scalar, all sparse indices are set to this single value.

Indices should be sorted in lexicographic order, and indices must not
contain any repeats. If `validate_indices` is true, these properties
are checked during execution.

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| ## Args ||
|---|---|
| `sparse_indices` | A `Tensor`. Must be one of the following types: `int32`, `int64`. 0-D, 1-D, or 2-D. `sparse_indices[i]` contains the complete index where `sparse_values[i]` will be placed. |
| `output_shape` | A `Tensor`. Must have the same type as `sparse_indices`. 1-D. Shape of the dense output tensor. |
| `sparse_values` | A `Tensor`. 1-D. Values corresponding to each row of `sparse_indices`, or a scalar value to be used for all sparse indices. |
| `default_value` | A `Tensor`. Must have the same type as `sparse_values`. Scalar value to set for indices not specified in `sparse_indices`. |
| `validate_indices` | An optional `bool`. Defaults to `True`. If true, indices are checked to make sure they are sorted in lexicographic order and that there are no repeats. |
| `name` | A name for the operation (optional). |

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| ## Returns ||
|---|---|
| A `Tensor`. Has the same type as `sparse_values`. ||

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