mirror of https://github.com/explosion/spaCy.git
255 lines
9.5 KiB
Markdown
255 lines
9.5 KiB
Markdown
---
|
|
title: Morphology
|
|
tag: class
|
|
source: spacy/morphology.pyx
|
|
---
|
|
|
|
Store the possible morphological analyses for a language, and index them by
|
|
hash. To save space on each token, tokens only know the hash of their
|
|
morphological analysis, so queries of morphological attributes are delegated to
|
|
this class. See [`MorphAnalysis`](/api/morphology#morphansalysis) for the
|
|
container storing a single morphological analysis.
|
|
|
|
## Morphology.\_\_init\_\_ {#init tag="method"}
|
|
|
|
Create a Morphology object.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> from spacy.morphology import Morphology
|
|
>
|
|
> morphology = Morphology(strings)
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| --------- | --------------------------------- |
|
|
| `strings` | The string store. ~~StringStore~~ |
|
|
|
|
## Morphology.add {#add tag="method"}
|
|
|
|
Insert a morphological analysis in the morphology table, if not already present.
|
|
The morphological analysis may be provided in the Universal Dependencies
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
format as a string or in the tag map dictionary format. Returns the hash of the
|
|
new analysis.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1|Feat2=Val2"
|
|
> hash = nlp.vocab.morphology.add(feats)
|
|
> assert hash == nlp.vocab.strings[feats]
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ---------- | ------------------------------------------------ |
|
|
| `features` | The morphological features. ~~Union[Dict, str]~~ |
|
|
|
|
## Morphology.get {#get tag="method"}
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1|Feat2=Val2"
|
|
> hash = nlp.vocab.morphology.add(feats)
|
|
> assert nlp.vocab.morphology.get(hash) == feats
|
|
> ```
|
|
|
|
Get the
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
string for the hash of the morphological analysis.
|
|
|
|
| Name | Description |
|
|
| ------- | ----------------------------------------------- |
|
|
| `morph` | The hash of the morphological analysis. ~~int~~ |
|
|
|
|
## Morphology.feats_to_dict {#feats_to_dict tag="staticmethod"}
|
|
|
|
Convert a string
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
representation to a dictionary of features and values in the same format as the
|
|
tag map.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> from spacy.morphology import Morphology
|
|
> d = Morphology.feats_to_dict("Feat1=Val1|Feat2=Val2")
|
|
> assert d == {"Feat1": "Val1", "Feat2": "Val2"}
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
|
|
| `feats` | The morphological features in Universal Dependencies [FEATS](https://universaldependencies.org/format.html#morphological-annotation) format. ~~str~~ |
|
|
| **RETURNS** | The morphological features as a dictionary. ~~Dict[str, str]~~ |
|
|
|
|
## Morphology.dict_to_feats {#dict_to_feats tag="staticmethod"}
|
|
|
|
Convert a dictionary of features and values to a string
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
representation.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> from spacy.morphology import Morphology
|
|
> f = Morphology.dict_to_feats({"Feat1": "Val1", "Feat2": "Val2"})
|
|
> assert f == "Feat1=Val1|Feat2=Val2"
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
|
|
| `feats_dict` | The morphological features as a dictionary. ~~Dict[str, str]~~ |
|
|
| **RETURNS** | The morphological features as in Universal Dependencies [FEATS](https://universaldependencies.org/format.html#morphological-annotation) format. ~~str~~ |
|
|
|
|
## Attributes {#attributes}
|
|
|
|
| Name | Description |
|
|
| ------------- | ------------------------------------------------------------------------------------------------------------------------------ |
|
|
| `FEATURE_SEP` | The [FEATS](https://universaldependencies.org/format.html#morphological-annotation) feature separator. Default is `|`. ~~str~~ |
|
|
| `FIELD_SEP` | The [FEATS](https://universaldependencies.org/format.html#morphological-annotation) field separator. Default is `=`. ~~str~~ |
|
|
| `VALUE_SEP` | The [FEATS](https://universaldependencies.org/format.html#morphological-annotation) value separator. Default is `,`. ~~str~~ |
|
|
|
|
## MorphAnalysis {#morphanalysis tag="class" source="spacy/tokens/morphanalysis.pyx"}
|
|
|
|
Stores a single morphological analysis.
|
|
|
|
### MorphAnalysis.\_\_init\_\_ {#morphanalysis-init tag="method"}
|
|
|
|
Initialize a MorphAnalysis object from a Universal Dependencies
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
string or a dictionary of morphological features.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> from spacy.tokens import MorphAnalysis
|
|
>
|
|
> feats = "Feat1=Val1|Feat2=Val2"
|
|
> m = MorphAnalysis(nlp.vocab, feats)
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ---------- | ---------------------------------------------------------- |
|
|
| `vocab` | The vocab. ~~Vocab~~ |
|
|
| `features` | The morphological features. ~~Union[Dict[str, str], str]~~ |
|
|
|
|
### MorphAnalysis.\_\_contains\_\_ {#morphanalysis-contains tag="method"}
|
|
|
|
Whether a feature/value pair is in the analysis.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val2|Feat2=Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert "Feat1=Val1" in morph
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | --------------------------------------------- |
|
|
| **RETURNS** | A feature/value pair in the analysis. ~~str~~ |
|
|
|
|
### MorphAnalysis.\_\_iter\_\_ {#morphanalysis-iter tag="method"}
|
|
|
|
Iterate over the feature/value pairs in the analysis.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val3|Feat2=Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert list(morph) == ["Feat1=Va1", "Feat1=Val3", "Feat2=Val2"]
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ---------- | --------------------------------------------- |
|
|
| **YIELDS** | A feature/value pair in the analysis. ~~str~~ |
|
|
|
|
### MorphAnalysis.\_\_len\_\_ {#morphanalysis-len tag="method"}
|
|
|
|
Returns the number of features in the analysis.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val2|Feat2=Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert len(morph) == 3
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | ----------------------------------------------- |
|
|
| **RETURNS** | The number of features in the analysis. ~~int~~ |
|
|
|
|
### MorphAnalysis.\_\_str\_\_ {#morphanalysis-str tag="method"}
|
|
|
|
Returns the morphological analysis in the Universal Dependencies
|
|
[FEATS](https://universaldependencies.org/format.html#morphological-annotation)
|
|
string format.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val2|Feat2=Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert str(morph) == feats
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
|
|
| **RETURNS** | The analysis in the Universal Dependencies [FEATS](https://universaldependencies.org/format.html#morphological-annotation) format. ~~str~~ |
|
|
|
|
### MorphAnalysis.get {#morphanalysis-get tag="method"}
|
|
|
|
Retrieve values for a feature by field.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert morph.get("Feat1") == ["Val1", "Val2"]
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | ------------------------------------------------ |
|
|
| `field` | The field to retrieve. ~~str~~ |
|
|
| **RETURNS** | A list of the individual features. ~~List[str]~~ |
|
|
|
|
### MorphAnalysis.to_dict {#morphanalysis-to_dict tag="method"}
|
|
|
|
Produce a dict representation of the analysis, in the same format as the tag
|
|
map.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1,Val2|Feat2=Val2"
|
|
> morph = MorphAnalysis(nlp.vocab, feats)
|
|
> assert morph.to_dict() == {"Feat1": "Val1,Val2", "Feat2": "Val2"}
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ----------- | ----------------------------------------------------------- |
|
|
| **RETURNS** | The dict representation of the analysis. ~~Dict[str, str]~~ |
|
|
|
|
### MorphAnalysis.from_id {#morphanalysis-from_id tag="classmethod"}
|
|
|
|
Create a morphological analysis from a given hash ID.
|
|
|
|
> #### Example
|
|
>
|
|
> ```python
|
|
> feats = "Feat1=Val1|Feat2=Val2"
|
|
> hash = nlp.vocab.strings[feats]
|
|
> morph = MorphAnalysis.from_id(nlp.vocab, hash)
|
|
> assert str(morph) == feats
|
|
> ```
|
|
|
|
| Name | Description |
|
|
| ------- | ---------------------------------------- |
|
|
| `vocab` | The vocab. ~~Vocab~~ |
|
|
| `key` | The hash of the features string. ~~int~~ |
|