mirror of https://github.com/explosion/spaCy.git
748 lines
40 KiB
Markdown
748 lines
40 KiB
Markdown
---
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title: Doc
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tag: class
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teaser: A container for accessing linguistic annotations.
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source: spacy/tokens/doc.pyx
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---
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A `Doc` is a sequence of [`Token`](/api/token) objects. Access sentences and
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named entities, export annotations to numpy arrays, losslessly serialize to
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compressed binary strings. The `Doc` object holds an array of
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[`TokenC`](/api/cython-structs#tokenc) structs. The Python-level `Token` and
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[`Span`](/api/span) objects are views of this array, i.e. they don't own the
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data themselves.
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## Doc.\_\_init\_\_ {#init tag="method"}
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Construct a `Doc` object. The most common way to get a `Doc` object is via the
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`nlp` object.
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> #### Example
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>
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> ```python
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> # Construction 1
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> doc = nlp("Some text")
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>
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> # Construction 2
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> from spacy.tokens import Doc
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>
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> words = ["hello", "world", "!"]
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> spaces = [True, False, False]
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> doc = Doc(nlp.vocab, words=words, spaces=spaces)
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> ```
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| Name | Description |
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| ---------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `vocab` | A storage container for lexical types. ~~Vocab~~ |
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| `words` | A list of strings to add to the container. ~~Optional[List[str]]~~ |
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| `spaces` | A list of boolean values indicating whether each word has a subsequent space. Must have the same length as `words`, if specified. Defaults to a sequence of `True`. ~~Optional[List[bool]]~~ |
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| _keyword-only_ | |
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| `user\_data` | Optional extra data to attach to the Doc. ~~Dict~~ |
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| `tags` <Tag variant="new">3</Tag> | A list of strings, of the same length as `words`, to assign as `token.tag` for each word. Defaults to `None`. ~~Optional[List[str]]~~ |
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| `pos` <Tag variant="new">3</Tag> | A list of strings, of the same length as `words`, to assign as `token.pos` for each word. Defaults to `None`. ~~Optional[List[str]]~~ |
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| `morphs` <Tag variant="new">3</Tag> | A list of strings, of the same length as `words`, to assign as `token.morph` for each word. Defaults to `None`. ~~Optional[List[str]]~~ |
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| `lemmas` <Tag variant="new">3</Tag> | A list of strings, of the same length as `words`, to assign as `token.lemma` for each word. Defaults to `None`. ~~Optional[List[str]]~~ |
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| `heads` <Tag variant="new">3</Tag> | A list of values, of the same length as `words`, to assign as the head for each word. Head indices are the absolute position of the head in the `Doc`. Defaults to `None`. ~~Optional[List[int]]~~ |
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| `deps` <Tag variant="new">3</Tag> | A list of strings, of the same length as `words`, to assign as `token.dep` for each word. Defaults to `None`. ~~Optional[List[str]]~~ |
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| `sent_starts` <Tag variant="new">3</Tag> | A list of values, of the same length as `words`, to assign as `token.is_sent_start`. Will be overridden by heads if `heads` is provided. Defaults to `None`. ~~Optional[List[Union[bool, None]]~~ |
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| `ents` <Tag variant="new">3</Tag> | A list of strings, of the same length of `words`, to assign the token-based IOB tag. Defaults to `None`. ~~Optional[List[str]]~~ |
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## Doc.\_\_getitem\_\_ {#getitem tag="method"}
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Get a [`Token`](/api/token) object at position `i`, where `i` is an integer.
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Negative indexing is supported, and follows the usual Python semantics, i.e.
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`doc[-2]` is `doc[len(doc) - 2]`.
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> #### Example
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>
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> ```python
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> doc = nlp("Give it back! He pleaded.")
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> assert doc[0].text == "Give"
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> assert doc[-1].text == "."
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> span = doc[1:3]
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> assert span.text == "it back"
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> ```
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| Name | Description |
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| ----------- | -------------------------------- |
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| `i` | The index of the token. ~~int~~ |
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| **RETURNS** | The token at `doc[i]`. ~~Token~~ |
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Get a [`Span`](/api/span) object, starting at position `start` (token index) and
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ending at position `end` (token index). For instance, `doc[2:5]` produces a span
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consisting of tokens 2, 3 and 4. Stepped slices (e.g. `doc[start : end : step]`)
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are not supported, as `Span` objects must be contiguous (cannot have gaps). You
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can use negative indices and open-ended ranges, which have their normal Python
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semantics.
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| Name | Description |
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| ----------- | ----------------------------------------------------- |
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| `start_end` | The slice of the document to get. ~~Tuple[int, int]~~ |
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| **RETURNS** | The span at `doc[start:end]`. ~~Span~~ |
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## Doc.\_\_iter\_\_ {#iter tag="method"}
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Iterate over `Token` objects, from which the annotations can be easily accessed.
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> #### Example
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>
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> ```python
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> doc = nlp("Give it back")
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> assert [t.text for t in doc] == ["Give", "it", "back"]
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> ```
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This is the main way of accessing [`Token`](/api/token) objects, which are the
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main way annotations are accessed from Python. If faster-than-Python speeds are
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required, you can instead access the annotations as a numpy array, or access the
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underlying C data directly from Cython.
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| Name | Description |
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| ---------- | --------------------------- |
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| **YIELDS** | A `Token` object. ~~Token~~ |
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## Doc.\_\_len\_\_ {#len tag="method"}
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Get the number of tokens in the document.
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> #### Example
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>
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> ```python
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> doc = nlp("Give it back! He pleaded.")
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> assert len(doc) == 7
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> ```
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| Name | Description |
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| ----------- | --------------------------------------------- |
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| **RETURNS** | The number of tokens in the document. ~~int~~ |
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## Doc.set_extension {#set_extension tag="classmethod" new="2"}
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Define a custom attribute on the `Doc` which becomes available via `Doc._`. For
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details, see the documentation on
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[custom attributes](/usage/processing-pipelines#custom-components-attributes).
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> #### Example
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>
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> ```python
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> from spacy.tokens import Doc
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> city_getter = lambda doc: any(city in doc.text for city in ("New York", "Paris", "Berlin"))
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> Doc.set_extension("has_city", getter=city_getter)
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> doc = nlp("I like New York")
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> assert doc._.has_city
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> ```
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| Name | Description |
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| --------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `name` | Name of the attribute to set by the extension. For example, `"my_attr"` will be available as `doc._.my_attr`. ~~str~~ |
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| `default` | Optional default value of the attribute if no getter or method is defined. ~~Optional[Any]~~ |
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| `method` | Set a custom method on the object, for example `doc._.compare(other_doc)`. ~~Optional[Callable[[Doc, ...], Any]]~~ |
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| `getter` | Getter function that takes the object and returns an attribute value. Is called when the user accesses the `._` attribute. ~~Optional[Callable[[Doc], Any]]~~ |
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| `setter` | Setter function that takes the `Doc` and a value, and modifies the object. Is called when the user writes to the `Doc._` attribute. ~~Optional[Callable[[Doc, Any], None]]~~ |
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| `force` | Force overwriting existing attribute. ~~bool~~ |
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## Doc.get_extension {#get_extension tag="classmethod" new="2"}
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Look up a previously registered extension by name. Returns a 4-tuple
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`(default, method, getter, setter)` if the extension is registered. Raises a
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`KeyError` otherwise.
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> #### Example
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>
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> ```python
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> from spacy.tokens import Doc
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> Doc.set_extension("has_city", default=False)
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> extension = Doc.get_extension("has_city")
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> assert extension == (False, None, None, None)
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> ```
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| Name | Description |
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| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `name` | Name of the extension. ~~str~~ |
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| **RETURNS** | A `(default, method, getter, setter)` tuple of the extension. ~~Tuple[Optional[Any], Optional[Callable], Optional[Callable], Optional[Callable]]~~ |
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## Doc.has_extension {#has_extension tag="classmethod" new="2"}
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Check whether an extension has been registered on the `Doc` class.
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> #### Example
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>
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> ```python
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> from spacy.tokens import Doc
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> Doc.set_extension("has_city", default=False)
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> assert Doc.has_extension("has_city")
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> ```
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| Name | Description |
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| ----------- | --------------------------------------------------- |
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| `name` | Name of the extension to check. ~~str~~ |
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| **RETURNS** | Whether the extension has been registered. ~~bool~~ |
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## Doc.remove_extension {#remove_extension tag="classmethod" new="2.0.12"}
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Remove a previously registered extension.
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> #### Example
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>
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> ```python
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> from spacy.tokens import Doc
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> Doc.set_extension("has_city", default=False)
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> removed = Doc.remove_extension("has_city")
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> assert not Doc.has_extension("has_city")
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> ```
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| Name | Description |
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| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `name` | Name of the extension. ~~str~~ |
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| **RETURNS** | A `(default, method, getter, setter)` tuple of the removed extension. ~~Tuple[Optional[Any], Optional[Callable], Optional[Callable], Optional[Callable]]~~ |
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## Doc.char_span {#char_span tag="method" new="2"}
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Create a `Span` object from the slice `doc.text[start_idx:end_idx]`. Returns
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`None` if the character indices don't map to a valid span using the default
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alignment mode `"strict".
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> #### Example
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>
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> ```python
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> doc = nlp("I like New York")
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> span = doc.char_span(7, 15, label="GPE")
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> assert span.text == "New York"
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> ```
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| Name | Description |
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| ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `start` | The index of the first character of the span. ~~int~~ |
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| `end` | The index of the last character after the span. ~int~~ |
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| `label` | A label to attach to the span, e.g. for named entities. ~~Union[int, str]~~ |
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| `kb_id` <Tag variant="new">2.2</Tag> | An ID from a knowledge base to capture the meaning of a named entity. ~~Union[int, str]~~ |
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| `vector` | A meaning representation of the span. ~~numpy.ndarray[ndim=1, dtype=float32]~~ |
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| `alignment_mode` | How character indices snap to token boundaries. Options: `"strict"` (no snapping), `"contract"` (span of all tokens completely within the character span), `"expand"` (span of all tokens at least partially covered by the character span). Defaults to `"strict"`. ~~str~~ |
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| **RETURNS** | The newly constructed object or `None`. ~~Optional[Span]~~ |
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## Doc.set_ents {#set_ents tag="method" new="3"}
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Set the named entities in the document.
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> #### Example
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>
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> ```python
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> from spacy.tokens import Span
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> doc = nlp("Mr. Best flew to New York on Saturday morning.")
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> doc.set_ents([Span(doc, 0, 2, "PERSON")])
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> ents = list(doc.ents)
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> assert ents[0].label_ == "PERSON"
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> assert ents[0].text == "Mr. Best"
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> ```
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| Name | Description |
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| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| entities | Spans with labels to set as entities. ~~List[Span]~~ |
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| _keyword-only_ | |
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| blocked | Spans to set as "blocked" (never an entity) for spacy's built-in NER component. Other components may ignore this setting. ~~Optional[List[Span]]~~ |
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| missing | Spans with missing/unknown entity information. ~~Optional[List[Span]]~~ |
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| outside | Spans outside of entities (O in IOB). ~~Optional[List[Span]]~~ |
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| default | How to set entity annotation for tokens outside of any provided spans. Options: "blocked", "missing", "outside" and "unmodified" (preserve current state). Defaults to "outside". ~~str~~ |
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## Doc.similarity {#similarity tag="method" model="vectors"}
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Make a semantic similarity estimate. The default estimate is cosine similarity
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using an average of word vectors.
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> #### Example
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>
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> ```python
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> apples = nlp("I like apples")
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> oranges = nlp("I like oranges")
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> apples_oranges = apples.similarity(oranges)
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> oranges_apples = oranges.similarity(apples)
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> assert apples_oranges == oranges_apples
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> ```
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| Name | Description |
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| ----------- | -------------------------------------------------------------------------------------------------------------------------------- |
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| `other` | The object to compare with. By default, accepts `Doc`, `Span`, `Token` and `Lexeme` objects. ~~Union[Doc, Span, Token, Lexeme]~~ |
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| **RETURNS** | A scalar similarity score. Higher is more similar. ~~float~~ |
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## Doc.count_by {#count_by tag="method"}
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Count the frequencies of a given attribute. Produces a dict of
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`{attr (int): count (ints)}` frequencies, keyed by the values of the given
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attribute ID.
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> #### Example
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>
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> ```python
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> from spacy.attrs import ORTH
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> doc = nlp("apple apple orange banana")
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> assert doc.count_by(ORTH) == {7024: 1, 119552: 1, 2087: 2}
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> doc.to_array([ORTH])
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> # array([[11880], [11880], [7561], [12800]])
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> ```
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| Name | Description |
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| ----------- | --------------------------------------------------------------------- |
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| `attr_id` | The attribute ID. ~~int~~ |
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| **RETURNS** | A dictionary mapping attributes to integer counts. ~~Dict[int, int]~~ |
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## Doc.get_lca_matrix {#get_lca_matrix tag="method"}
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Calculates the lowest common ancestor matrix for a given `Doc`. Returns LCA
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matrix containing the integer index of the ancestor, or `-1` if no common
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ancestor is found, e.g. if span excludes a necessary ancestor.
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> #### Example
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>
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> ```python
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> doc = nlp("This is a test")
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> matrix = doc.get_lca_matrix()
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> # array([[0, 1, 1, 1], [1, 1, 1, 1], [1, 1, 2, 3], [1, 1, 3, 3]], dtype=int32)
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> ```
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| Name | Description |
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| ----------- | -------------------------------------------------------------------------------------- |
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| **RETURNS** | The lowest common ancestor matrix of the `Doc`. ~~numpy.ndarray[ndim=2, dtype=int32]~~ |
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## Doc.has_annotation {#has_annotation tag="method"}
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Check whether the doc contains annotation on a token attribute.
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<Infobox title="Changed in v3.0" variant="warning">
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This method replaces the previous boolean attributes like `Doc.is_tagged`,
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`Doc.is_parsed` or `Doc.is_sentenced`.
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```diff
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doc = nlp("This is a text")
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- assert doc.is_parsed
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+ assert doc.has_annotation("DEP")
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```
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</Infobox>
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| Name | Description |
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| ------------------ | --------------------------------------------------------------------------------------------------- |
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| `attr` | The attribute string name or int ID. ~~Union[int, str]~~ |
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| _keyword-only_ | |
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| `require_complete` | Whether to check that the attribute is set on every token in the doc. Defaults to `False`. ~~bool~~ |
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| **RETURNS** | Whether specified annotation is present in the doc. ~~bool~~ |
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## Doc.to_array {#to_array tag="method"}
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Export given token attributes to a numpy `ndarray`. If `attr_ids` is a sequence
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of `M` attributes, the output array will be of shape `(N, M)`, where `N` is the
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length of the `Doc` (in tokens). If `attr_ids` is a single attribute, the output
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shape will be `(N,)`. You can specify attributes by integer ID (e.g.
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`spacy.attrs.LEMMA`) or string name (e.g. "LEMMA" or "lemma"). The values will
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be 64-bit integers.
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Returns a 2D array with one row per token and one column per attribute (when
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`attr_ids` is a list), or as a 1D numpy array, with one item per attribute (when
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`attr_ids` is a single value).
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> #### Example
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>
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> ```python
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> from spacy.attrs import LOWER, POS, ENT_TYPE, IS_ALPHA
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> doc = nlp(text)
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> # All strings mapped to integers, for easy export to numpy
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> np_array = doc.to_array([LOWER, POS, ENT_TYPE, IS_ALPHA])
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> np_array = doc.to_array("POS")
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> ```
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| Name | Description |
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| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
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| `attr_ids` | A list of attributes (int IDs or string names) or a single attribute (int ID or string name). ~~Union[int, str, List[Union[int, str]]]~~ |
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| **RETURNS** | The exported attributes as a numpy array. ~~Union[numpy.ndarray[ndim=2, dtype=uint64], numpy.ndarray[ndim=1, dtype=uint64]]~~ |
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## Doc.from_array {#from_array tag="method"}
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Load attributes from a numpy array. Write to a `Doc` object, from an `(M, N)`
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array of attributes.
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> #### Example
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>
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> ```python
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> from spacy.attrs import LOWER, POS, ENT_TYPE, IS_ALPHA
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> from spacy.tokens import Doc
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> doc = nlp("Hello world!")
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> np_array = doc.to_array([LOWER, POS, ENT_TYPE, IS_ALPHA])
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> doc2 = Doc(doc.vocab, words=[t.text for t in doc])
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> doc2.from_array([LOWER, POS, ENT_TYPE, IS_ALPHA], np_array)
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> assert doc[0].pos_ == doc2[0].pos_
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> ```
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| Name | Description |
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| ----------- | ------------------------------------------------------------------------------------------- |
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| `attrs` | A list of attribute ID ints. ~~List[int]~~ |
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| `array` | The attribute values to load. ~~numpy.ndarray[ndim=2, dtype=int32]~~ |
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| `exclude` | String names of [serialization fields](#serialization-fields) to exclude. ~~Iterable[str]~~ |
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| **RETURNS** | The `Doc` itself. ~~Doc~~ |
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## Doc.from_docs {#from_docs tag="staticmethod" new="3"}
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Concatenate multiple `Doc` objects to form a new one. Raises an error if the
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`Doc` objects do not all share the same `Vocab`.
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> #### Example
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>
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> ```python
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> from spacy.tokens import Doc
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> texts = ["London is the capital of the United Kingdom.",
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> "The River Thames flows through London.",
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> "The famous Tower Bridge crosses the River Thames."]
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> docs = list(nlp.pipe(texts))
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> c_doc = Doc.from_docs(docs)
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> assert str(c_doc) == " ".join(texts)
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> assert len(list(c_doc.sents)) == len(docs)
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> assert [str(ent) for ent in c_doc.ents] == \
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> [str(ent) for doc in docs for ent in doc.ents]
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> ```
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| Name | Description |
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| ------------------- | ----------------------------------------------------------------------------------------------------------------- |
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| `docs` | A list of `Doc` objects. ~~List[Doc]~~ |
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| `ensure_whitespace` | Insert a space between two adjacent docs whenever the first doc does not end in whitespace. ~~bool~~ |
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| `attrs` | Optional list of attribute ID ints or attribute name strings. ~~Optional[List[Union[str, int]]]~~ |
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| **RETURNS** | The new `Doc` object that is containing the other docs or `None`, if `docs` is empty or `None`. ~~Optional[Doc]~~ |
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## Doc.to_disk {#to_disk tag="method" new="2"}
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Save the current state to a directory.
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> #### Example
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>
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> ```python
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> doc.to_disk("/path/to/doc")
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> ```
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| Name | Description |
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| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
|
||
| `path` | A path to a directory, which will be created if it doesn't exist. Paths may be either strings or `Path`-like objects. ~~Union[str, Path]~~ |
|
||
| _keyword-only_ | |
|
||
| `exclude` | String names of [serialization fields](#serialization-fields) to exclude. ~~Iterable[str]~~ |
|
||
|
||
## Doc.from_disk {#from_disk tag="method" new="2"}
|
||
|
||
Loads state from a directory. Modifies the object in place and returns it.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> from spacy.tokens import Doc
|
||
> from spacy.vocab import Vocab
|
||
> doc = Doc(Vocab()).from_disk("/path/to/doc")
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| -------------- | ----------------------------------------------------------------------------------------------- |
|
||
| `path` | A path to a directory. Paths may be either strings or `Path`-like objects. ~~Union[str, Path]~~ |
|
||
| _keyword-only_ | |
|
||
| `exclude` | String names of [serialization fields](#serialization-fields) to exclude. ~~Iterable[str]~~ |
|
||
| **RETURNS** | The modified `Doc` object. ~~Doc~~ |
|
||
|
||
## Doc.to_bytes {#to_bytes tag="method"}
|
||
|
||
Serialize, i.e. export the document contents to a binary string.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("Give it back! He pleaded.")
|
||
> doc_bytes = doc.to_bytes()
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| -------------- | ------------------------------------------------------------------------------------------- |
|
||
| _keyword-only_ | |
|
||
| `exclude` | String names of [serialization fields](#serialization-fields) to exclude. ~~Iterable[str]~~ |
|
||
| **RETURNS** | A losslessly serialized copy of the `Doc`, including all annotations. ~~bytes~~ |
|
||
|
||
## Doc.from_bytes {#from_bytes tag="method"}
|
||
|
||
Deserialize, i.e. import the document contents from a binary string.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> from spacy.tokens import Doc
|
||
> doc = nlp("Give it back! He pleaded.")
|
||
> doc_bytes = doc.to_bytes()
|
||
> doc2 = Doc(doc.vocab).from_bytes(doc_bytes)
|
||
> assert doc.text == doc2.text
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| -------------- | ------------------------------------------------------------------------------------------- |
|
||
| `data` | The string to load from. ~~bytes~~ |
|
||
| _keyword-only_ | |
|
||
| `exclude` | String names of [serialization fields](#serialization-fields) to exclude. ~~Iterable[str]~~ |
|
||
| **RETURNS** | The `Doc` object. ~~Doc~~ |
|
||
|
||
## Doc.retokenize {#retokenize tag="contextmanager" new="2.1"}
|
||
|
||
Context manager to handle retokenization of the `Doc`. Modifications to the
|
||
`Doc`'s tokenization are stored, and then made all at once when the context
|
||
manager exits. This is much more efficient, and less error-prone. All views of
|
||
the `Doc` (`Span` and `Token`) created before the retokenization are
|
||
invalidated, although they may accidentally continue to work.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("Hello world!")
|
||
> with doc.retokenize() as retokenizer:
|
||
> retokenizer.merge(doc[0:2])
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | -------------------------------- |
|
||
| **RETURNS** | The retokenizer. ~~Retokenizer~~ |
|
||
|
||
### Retokenizer.merge {#retokenizer.merge tag="method"}
|
||
|
||
Mark a span for merging. The `attrs` will be applied to the resulting token (if
|
||
they're context-dependent token attributes like `LEMMA` or `DEP`) or to the
|
||
underlying lexeme (if they're context-independent lexical attributes like
|
||
`LOWER` or `IS_STOP`). Writable custom extension attributes can be provided
|
||
using the `"_"` key and specifying a dictionary that maps attribute names to
|
||
values.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("I like David Bowie")
|
||
> with doc.retokenize() as retokenizer:
|
||
> attrs = {"LEMMA": "David Bowie"}
|
||
> retokenizer.merge(doc[2:4], attrs=attrs)
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ------- | --------------------------------------------------------------------- |
|
||
| `span` | The span to merge. ~~Span~~ |
|
||
| `attrs` | Attributes to set on the merged token. ~~Dict[Union[str, int], Any]~~ |
|
||
|
||
### Retokenizer.split {#retokenizer.split tag="method"}
|
||
|
||
Mark a token for splitting, into the specified `orths`. The `heads` are required
|
||
to specify how the new subtokens should be integrated into the dependency tree.
|
||
The list of per-token heads can either be a token in the original document, e.g.
|
||
`doc[2]`, or a tuple consisting of the token in the original document and its
|
||
subtoken index. For example, `(doc[3], 1)` will attach the subtoken to the
|
||
second subtoken of `doc[3]`.
|
||
|
||
This mechanism allows attaching subtokens to other newly created subtokens,
|
||
without having to keep track of the changing token indices. If the specified
|
||
head token will be split within the retokenizer block and no subtoken index is
|
||
specified, it will default to `0`. Attributes to set on subtokens can be
|
||
provided as a list of values. They'll be applied to the resulting token (if
|
||
they're context-dependent token attributes like `LEMMA` or `DEP`) or to the
|
||
underlying lexeme (if they're context-independent lexical attributes like
|
||
`LOWER` or `IS_STOP`).
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("I live in NewYork")
|
||
> with doc.retokenize() as retokenizer:
|
||
> heads = [(doc[3], 1), doc[2]]
|
||
> attrs = {"POS": ["PROPN", "PROPN"],
|
||
> "DEP": ["pobj", "compound"]}
|
||
> retokenizer.split(doc[3], ["New", "York"], heads=heads, attrs=attrs)
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
|
||
| `token` | The token to split. ~~Token~~ |
|
||
| `orths` | The verbatim text of the split tokens. Needs to match the text of the original token. ~~List[str]~~ |
|
||
| `heads` | List of `token` or `(token, subtoken)` tuples specifying the tokens to attach the newly split subtokens to. ~~List[Union[Token, Tuple[Token, int]]]~~ |
|
||
| `attrs` | Attributes to set on all split tokens. Attribute names mapped to list of per-token attribute values. ~~Dict[Union[str, int], List[Any]]~~ |
|
||
|
||
## Doc.ents {#ents tag="property" model="NER"}
|
||
|
||
The named entities in the document. Returns a tuple of named entity `Span`
|
||
objects, if the entity recognizer has been applied.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("Mr. Best flew to New York on Saturday morning.")
|
||
> ents = list(doc.ents)
|
||
> assert ents[0].label_ == "PERSON"
|
||
> assert ents[0].text == "Mr. Best"
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | --------------------------------------------------------------------- |
|
||
| **RETURNS** | Entities in the document, one `Span` per entity. ~~Tuple[Span, ...]~~ |
|
||
|
||
## Doc.spans {#spans tag="property"}
|
||
|
||
A dictionary of named span groups, to store and access additional span
|
||
annotations. You can write to it by assigning a list of [`Span`](/api/span)
|
||
objects or a [`SpanGroup`](/api/spangroup) to a given key.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("Their goi ng home")
|
||
> doc.spans["errors"] = [doc[0:1], doc[2:4]]
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | ------------------------------------------------------------------ |
|
||
| **RETURNS** | The span groups assigned to the document. ~~Dict[str, SpanGroup]~~ |
|
||
|
||
## Doc.cats {#cats tag="property" model="text classifier"}
|
||
|
||
Maps a label to a score for categories applied to the document. Typically set by
|
||
the [`TextCategorizer`](/api/textcategorizer).
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("This is a text about football.")
|
||
> print(doc.cats)
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | ---------------------------------------------------------- |
|
||
| **RETURNS** | The text categories mapped to scores. ~~Dict[str, float]~~ |
|
||
|
||
## Doc.noun_chunks {#noun_chunks tag="property" model="parser"}
|
||
|
||
Iterate over the base noun phrases in the document. Yields base noun-phrase
|
||
`Span` objects, if the document has been syntactically parsed. A base noun
|
||
phrase, or "NP chunk", is a noun phrase that does not permit other NPs to be
|
||
nested within it – so no NP-level coordination, no prepositional phrases, and no
|
||
relative clauses.
|
||
|
||
If the `noun_chunk` [syntax iterator](/usage/adding-languages#language-data) has
|
||
not been implemeted for the given language, a `NotImplementedError` is raised.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("A phrase with another phrase occurs.")
|
||
> chunks = list(doc.noun_chunks)
|
||
> assert len(chunks) == 2
|
||
> assert chunks[0].text == "A phrase"
|
||
> assert chunks[1].text == "another phrase"
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ---------- | ------------------------------------- |
|
||
| **YIELDS** | Noun chunks in the document. ~~Span~~ |
|
||
|
||
## Doc.sents {#sents tag="property" model="sentences"}
|
||
|
||
Iterate over the sentences in the document. Sentence spans have no label.
|
||
|
||
This property is only available when
|
||
[sentence boundaries](/usage/linguistic-features#sbd) have been set on the
|
||
document by the `parser`, `senter`, `sentencizer` or some custom function. It
|
||
will raise an error otherwise.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("This is a sentence. Here's another...")
|
||
> sents = list(doc.sents)
|
||
> assert len(sents) == 2
|
||
> assert [s.root.text for s in sents] == ["is", "'s"]
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ---------- | ----------------------------------- |
|
||
| **YIELDS** | Sentences in the document. ~~Span~~ |
|
||
|
||
## Doc.has_vector {#has_vector tag="property" model="vectors"}
|
||
|
||
A boolean value indicating whether a word vector is associated with the object.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("I like apples")
|
||
> assert doc.has_vector
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | --------------------------------------------------------- |
|
||
| **RETURNS** | Whether the document has a vector data attached. ~~bool~~ |
|
||
|
||
## Doc.vector {#vector tag="property" model="vectors"}
|
||
|
||
A real-valued meaning representation. Defaults to an average of the token
|
||
vectors.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc = nlp("I like apples")
|
||
> assert doc.vector.dtype == "float32"
|
||
> assert doc.vector.shape == (300,)
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | -------------------------------------------------------------------------------------------------- |
|
||
| **RETURNS** | A 1-dimensional array representing the document's vector. ~~numpy.ndarray[ndim=1, dtype=float32]~~ |
|
||
|
||
## Doc.vector_norm {#vector_norm tag="property" model="vectors"}
|
||
|
||
The L2 norm of the document's vector representation.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> doc1 = nlp("I like apples")
|
||
> doc2 = nlp("I like oranges")
|
||
> doc1.vector_norm # 4.54232424414368
|
||
> doc2.vector_norm # 3.304373298575751
|
||
> assert doc1.vector_norm != doc2.vector_norm
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ----------- | --------------------------------------------------- |
|
||
| **RETURNS** | The L2 norm of the vector representation. ~~float~~ |
|
||
|
||
## Attributes {#attributes}
|
||
|
||
| Name | Description |
|
||
| ------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
|
||
| `text` | A string representation of the document text. ~~str~~ |
|
||
| `text_with_ws` | An alias of `Doc.text`, provided for duck-type compatibility with `Span` and `Token`. ~~str~~ |
|
||
| `mem` | The document's local memory heap, for all C data it owns. ~~cymem.Pool~~ |
|
||
| `vocab` | The store of lexical types. ~~Vocab~~ |
|
||
| `tensor` <Tag variant="new">2</Tag> | Container for dense vector representations. ~~numpy.ndarray~~ |
|
||
| `user_data` | A generic storage area, for user custom data. ~~Dict[str, Any]~~ |
|
||
| `lang` <Tag variant="new">2.1</Tag> | Language of the document's vocabulary. ~~int~~ |
|
||
| `lang_` <Tag variant="new">2.1</Tag> | Language of the document's vocabulary. ~~str~~ |
|
||
| `sentiment` | The document's positivity/negativity score, if available. ~~float~~ |
|
||
| `user_hooks` | A dictionary that allows customization of the `Doc`'s properties. ~~Dict[str, Callable]~~ |
|
||
| `user_token_hooks` | A dictionary that allows customization of properties of `Token` children. ~~Dict[str, Callable]~~ |
|
||
| `user_span_hooks` | A dictionary that allows customization of properties of `Span` children. ~~Dict[str, Callable]~~ |
|
||
| `has_unknown_spaces` | Whether the document was constructed without known spacing between tokens (typically when created from gold tokenization). ~~bool~~ |
|
||
| `_` | User space for adding custom [attribute extensions](/usage/processing-pipelines#custom-components-attributes). ~~Underscore~~ |
|
||
|
||
## Serialization fields {#serialization-fields}
|
||
|
||
During serialization, spaCy will export several data fields used to restore
|
||
different aspects of the object. If needed, you can exclude them from
|
||
serialization by passing in the string names via the `exclude` argument.
|
||
|
||
> #### Example
|
||
>
|
||
> ```python
|
||
> data = doc.to_bytes(exclude=["text", "tensor"])
|
||
> doc.from_disk("./doc.bin", exclude=["user_data"])
|
||
> ```
|
||
|
||
| Name | Description |
|
||
| ------------------ | --------------------------------------------- |
|
||
| `text` | The value of the `Doc.text` attribute. |
|
||
| `sentiment` | The value of the `Doc.sentiment` attribute. |
|
||
| `tensor` | The value of the `Doc.tensor` attribute. |
|
||
| `user_data` | The value of the `Doc.user_data` dictionary. |
|
||
| `user_data_keys` | The keys of the `Doc.user_data` dictionary. |
|
||
| `user_data_values` | The values of the `Doc.user_data` dictionary. |
|