Subtracts sparse updates to a variable reference.
tf.raw_ops.ScatterSub(
ref, indices, updates, use_locking=False, name=None
)
# Scalar indices
ref[indices, ...] -= updates[...]
# Vector indices (for each i)
ref[indices[i], ...] -= updates[i, ...]
# High rank indices (for each i, ..., j)
ref[indices[i, ..., j], ...] -= updates[i, ..., j, ...]
This operation outputs ref
after the update is done.
This makes it easier to chain operations that need to use the reset value.
Duplicate entries are handled correctly: if multiple indices
reference
the same location, their (negated) contributions add.
Requires updates.shape = indices.shape + ref.shape[1:]
or updates.shape = []
.
![](https://www.tensorflow.org/images/ScatterSub.png)
Returns | |
---|---|
A mutable Tensor . Has the same type as ref .
|