# Dataset

The provided [`Dataset`](__init__.py) class inherits from the [`AnnotationsReadMixin`](mixins/reading.py) and the [`PartMixing`](mixins/parts.py).
Consequently, to create a `Dataset` instance an [`Annotation`](../annotations.py) object is required (it is necessary to pass the names of the arguments!):


```python
# replace NAB_Annotations with CUB_Annotations to load CUB200-2011 annotations
from nabirds import NAB_Annotations, Dataset

annot = NAB_Annotations("path/to/nab/folder")

train_data = Dataset(uuids=annot.train_uuids, annotations=annot)
test_data = Dataset(uuids=annot.test_uuids, annotations=annot)
```

## Working with part and bounding box annotations

In order to enable the [`PartMixing`](mixins/parts.py) functionalities pass the appropriate arguments to the initializer:

```python
data = Dataset(
	uuids=uuids, annotations=annot,

	uniform_parts=True,

	crop_to_bb=True,
	crop_uniform=True,

	parts_in_bb=True,

	rnd_select=True,
	ratio=0.35,
	seed=21486214
)
```

Information about all possible [`PartMixing`](mixins/parts.py) functionalities can be found [here](mixins).