phenotypic.analysis.ExpectedVsDetectedCount#

class phenotypic.analysis.ExpectedVsDetectedCount(*, on: ~typing.Annotated[str, _ColumnRefMarker('measurements')] = 'Object_Label', groupby: ~typing.Annotated[list[str], _ColumnRefMarker('measurements')], agg_func: ~typing.Callable | str | list | dict | None = 'first', n_jobs: int = 1, warn_threshold: float = 0.05, fail_threshold: float = 0.1, unmatched_groups: list = <factory>, metadata: ~typing.Annotated[~pandas.core.frame.DataFrame, ~pydantic.json_schema.WithJsonSchema(json_schema={'type': 'object'}, mode=None)], metadata_source: str | None = None)[source]#

Bases: QualityCheck

Flag groups whose detected colony count diverges from metadata.

For each groupby combination the check compares the number of rows in the measurement frame (detected) against the number of rows in the externally-provided metadata frame for the same key (expected). The signed difference and its normalized magnitude drive a tri-state pass/warn/fail label:

  • QC_Count_Metric = |detected - expected| / expected

  • QC_Count_Metric = numpy.inf when expected == 0 (i.e. the measurement group has no metadata counterpart). This always exceeds fail_threshold so the status becomes "fail" and the rows are flagged. The offending key tuple is recorded in unmatched_groups so the GUI can distinguish a real biology fail from a metadata-mismatch fail.

_HIGHER_IS_BAD is True: a larger normalized count divergence is worse, so the base class flags rows whose metric meets or exceeds fail_threshold (including the infinite metric of an unmatched group).

The check does not aggregate measurement values — it counts rows — so _exposes_agg_func is False and the GUI parameter-form rendering driver hides the agg_func field. The base SetAnalyzer.agg_func is pinned to "first" internally.

The metadata argument can be either a ready-made pandas.DataFrame or a path (Path or str) to a .csv/.parquet file. The file is read once at construction time and the resolved frame is stored on the instance. Every column named in groupby must be present in the metadata frame; otherwise KeyError is raised at __init__ so the failure surfaces before analyze runs.

Serialization: the resolved frame is not part of the JSON-serializable parameter surface (a DataFrame is not JSON-native). When metadata is supplied as a path, that path string is captured in the serializable metadata_source field, so model_dump / pipeline.json round-trip the layout source and a reloaded instance re-reads the file. When metadata is supplied as an in-memory DataFrame there is no source path to persist — metadata_source stays None and the check cannot be rebuilt from JSON alone (it will fail to instantiate with a clear error, surfaced as a skip-with-warning by the lazy QC instantiation path). Configure QC checks from a metadata path whenever the pipeline is meant to round-trip.

Args:
metadata: Layout frame whose row count per groupby key is the

expected colony count. Either a DataFrame or a path to a CSV or Parquet file. Excluded from serialization — supply metadata_source instead when rebuilding from JSON.

metadata_source: Path to the layout CSV/Parquet, captured

automatically when metadata is given as a path. This is the JSON-serializable handle to the layout: on reconstruction from pipeline.json the frame is re-read from here. Usually set implicitly; pass it explicitly only when reconstructing without a metadata frame.

groupby: Columns that define a comparison unit. Must be present

in both the metadata frame and the measurement frame passed to analyze().

on: Measurement column the check operates on. Defaults to

"Object_Label" since “detected” means “a measurement row exists”.

warn_threshold: Normalized count divergence at which Status

becomes "warn". Defaults to 0.05.

fail_threshold: Normalized count divergence at which Status

becomes "fail" and Flag=True. Defaults to 0.10.

n_jobs: Worker count. Currently unused by the base analyze

loop; kept on the signature for parity with SetAnalyzer.

Raises:
FileNotFoundError: If metadata (or metadata_source) is a

path that does not exist.

KeyError: If any column in groupby is absent from the

resolved metadata frame.

ValueError: If metadata is a path with an unsupported suffix,

or if neither metadata nor metadata_source is supplied (e.g. reconstructing from JSON that was built from an in-memory frame, which has no source path to persist).

Attributes:
unmatched_groups: List of group-key tuples that appeared in the

measurement frame but had no counterpart in the metadata frame during the most recent analyze() call. Reset at the top of each analyze so re-runs do not accumulate.

Examples:

Basic match — 96-well metadata vs. a measurement frame missing one well:

>>> import pandas as pd
>>> from phenotypic.analysis.qc import (
...     ExpectedVsDetectedCount,
... )
>>> metadata = pd.DataFrame({
...     "Metadata_ImageFile": ["plate1.png"] * 96,
...     "Object_Label": list(range(96)),
... })
>>> measurements = pd.DataFrame({
...     "Metadata_ImageFile": ["plate1.png"] * 95,
...     "Object_Label": list(range(95)),
... })
>>> chk = ExpectedVsDetectedCount(
...     metadata=metadata,
...     groupby=["Metadata_ImageFile"],
... )
>>> result = chk.analyze(measurements)
>>> "QC_Count_Metric" in result.columns
True

Advanced — a measurement group has no metadata counterpart, so the metric is infinite and the key is recorded:

>>> metadata = pd.DataFrame({
...     "Metadata_ImageFile": ["plate1.png"] * 96,
...     "Object_Label": list(range(96)),
... })
>>> measurements = pd.DataFrame({
...     "Metadata_ImageFile": ["plate2.png"] * 10,
...     "Object_Label": list(range(10)),
... })
>>> chk = ExpectedVsDetectedCount(
...     metadata=metadata,
...     groupby=["Metadata_ImageFile"],
... )
>>> _ = chk.analyze(measurements)
>>> chk.unmatched_groups
[('plate2.png',)]
Category: QC_Count#

Name

Description

QC_Count_Flag

True when the metric crosses fail_threshold in the bad direction; eligible for curation.

QC_Count_Metric

Headline metric in the check’s own units; the bad direction is set by the check’s _HIGHER_IS_BAD flag. Drives Status.

QC_Count_Status

Categorical: pass | warn | fail.

Methods

__init__

Create a new model by parsing and validating input data from keyword arguments.

analyze

Reset unmatched_groups and run the base analyze.

construct

copy

Returns a copy of the model.

dash

Render a horizontal lollipop chart of Delta per group.

dict

flag_col

Return the flag column name for this check.

flagged_keys

Return (Metadata_ImageFile, Object_Label) pairs to curate.

from_orm

group_members

Map each group key to its member rows for worklists/galleries.

json

metric_col

Return the metric column name for this check.

model_construct

Creates a new instance of the Model class with validated data.

model_copy

!!! abstract "Usage Documentation"

model_dump

!!! abstract "Usage Documentation"

model_dump_json

!!! abstract "Usage Documentation"

model_json_schema

Generates a JSON schema for a model class.

model_parametrized_name

Compute the class name for parametrizations of generic classes.

model_post_init

Validate metadata columns and pre-compute expected counts.

model_rebuild

Try to rebuild the pydantic-core schema for the model.

model_validate

Validate a pydantic model instance.

model_validate_json

!!! abstract "Usage Documentation"

model_validate_strings

Validate the given object with string data against the Pydantic model.

parse_file

parse_obj

parse_raw

results

Return the augmented frame stored by the most recent analyze().

schema

schema_json

show

QualityCheck plots are Plotly-only — see dash().

status_col

Return the status column name for this check.

summary

Return a one-row-per-group summary of the most recent analyze.

update_forward_refs

validate

Attributes

model_computed_fields

model_config

Configuration for the model, should be a dictionary conforming to [ConfigDict][pydantic.config.ConfigDict].

model_extra

Get extra fields set during validation.

model_fields

model_fields_set

Returns the set of fields that have been explicitly set on this model instance.

name

warn_threshold

fail_threshold

on

agg_func

metadata

metadata_source

unmatched_groups

groupby

n_jobs

Parameters:
name: ClassVar[str] = 'Count'#
warn_threshold: float#
fail_threshold: float#
on: ColumnRef#
agg_func: Callable | str | list | dict | None#
metadata: _MetadataFrame#
metadata_source: str | None#
model_post_init(_ExpectedVsDetectedCount__context: Any) None[source]#

Validate metadata columns and pre-compute expected counts.

Runs after pydantic has validated every field. Mirrors the resolved metadata frame onto the private _metadata slot, verifies every groupby column is present, and caches the per-key expected colony counts.

Parameters:
  • __context – Pydantic post-init context (unused).

  • _ExpectedVsDetectedCount__context (Any)

Raises:

KeyError – If any column in groupby is absent from the resolved metadata frame.

Return type:

None

analyze(data: pandas.DataFrame) pandas.DataFrame[source]#

Reset unmatched_groups and run the base analyze.

Re-running the check on a different measurement frame must not carry over unmatched groups from a previous run, so the list is cleared before delegating to the base class.

Parameters:

data (pandas.DataFrame) – Measurement frame to evaluate.

Returns:

The augmented frame from QualityCheck.analyze().

Return type:

pandas.DataFrame

dash(**kwargs: Any) Figure[source]#

Render a horizontal lollipop chart of Delta per group.

Each group’s signed Delta is drawn as a horizontal stem from zero to Delta, with a marker at the tip colored by Status. The hover label exposes detected, expected, and the metric for the group.

Parameters:

**kwargs (Any) – Passed through to plotly.graph_objects.Figure() / Figure.update_layout — accepted keys are title and height.

Returns:

A plotly.graph_objects.Figure with one stem trace and one marker trace.

Raises:

RuntimeError – If analyze() has not been called yet.

Return type:

Figure

__copy__() Self#

Returns a shallow copy of the model.

Return type:

Self

__deepcopy__(memo: dict[int, Any] | None = None) Self#

Returns a deep copy of the model.

Parameters:

memo (dict[int, Any] | None)

Return type:

Self

classmethod __get_pydantic_json_schema__(core_schema: CoreSchema, handler: GetJsonSchemaHandler, /) JsonSchemaValue#

Hook into generating the model’s JSON schema.

Parameters:
  • core_schema (CoreSchema) – A pydantic-core CoreSchema. You can ignore this argument and call the handler with a new CoreSchema, wrap this CoreSchema ({‘type’: ‘nullable’, ‘schema’: current_schema}), or just call the handler with the original schema.

  • handler (GetJsonSchemaHandler) – Call into Pydantic’s internal JSON schema generation. This will raise a pydantic.errors.PydanticInvalidForJsonSchema if JSON schema generation fails. Since this gets called by BaseModel.model_json_schema you can override the schema_generator argument to that function to change JSON schema generation globally for a type.

Returns:

A JSON schema, as a Python object.

Return type:

JsonSchemaValue

__init__(**data: Any) None#

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

Parameters:

data (Any)

Return type:

None

classmethod __init_subclass__(**kwargs: Any) None#

Append QC and per-check RST tables to the subclass docstring.

Skips intermediate ABCs that have not yet bound name. When the subclass declares both a docstring and a name, the generic QUALITY_CHECK table is appended (substituting name into the column headers). If _measurement_infoclass is also set, its table is appended as well so check-specific columns are documented alongside the generic trio.

Parameters:

kwargs (Any)

Return type:

None

__iter__() Generator[tuple[str, Any], None, None]#

So dict(model) works.

Return type:

Generator[tuple[str, Any], None, None]

__pretty__(fmt: Callable[[Any], Any], **kwargs: Any) Generator[Any]#

Used by devtools (https://python-devtools.helpmanual.io/) to pretty print objects.

Parameters:
Return type:

Generator[Any]

classmethod __pydantic_init_subclass__(**kwargs: Any) None#

Populate field descriptions from the subclass docstring.

Runs once per concrete subclass after pydantic has built its model, copying parameter descriptions parsed from the Google-style Args: docstring block onto each field’s description slot.

Parameters:

**kwargs (Any) – Class-keyword arguments forwarded by pydantic.

Return type:

None

classmethod __pydantic_on_complete__() None#

This is called once the class and its fields are fully initialized and ready to be used.

This typically happens when the class is created (just before [__pydantic_init_subclass__()][pydantic.main.BaseModel.__pydantic_init_subclass__] is called on the superclass), except when forward annotations are used that could not immediately be resolved. In that case, it will be called later, when the model is rebuilt automatically or explicitly using [model_rebuild()][pydantic.main.BaseModel.model_rebuild].

Return type:

None

__repr_name__() str#

Name of the instance’s class, used in __repr__.

Return type:

str

__repr_recursion__(object: Any) str#

Returns the string representation of a recursive object.

Parameters:

object (Any)

Return type:

str

__rich_repr__() RichReprResult#

Used by Rich (https://rich.readthedocs.io/en/stable/pretty.html) to pretty print objects.

Return type:

RichReprResult

classmethod construct(_fields_set: set[str] | None = None, **values: Any) Self#
Parameters:
Return type:

Self

copy(*, include: AbstractSetIntStr | MappingIntStrAny | None = None, exclude: AbstractSetIntStr | MappingIntStrAny | None = None, update: Dict[str, Any] | None = None, deep: bool = False) Self#

Returns a copy of the model.

!!! warning “Deprecated”

This method is now deprecated; use model_copy instead.

If you need include or exclude, use:

`python {test="skip" lint="skip"} data = self.model_dump(include=include, exclude=exclude, round_trip=True) data = {**data, **(update or {})} copied = self.model_validate(data) `

Parameters:
  • include (AbstractSetIntStr | MappingIntStrAny | None) – Optional set or mapping specifying which fields to include in the copied model.

  • exclude (AbstractSetIntStr | MappingIntStrAny | None) – Optional set or mapping specifying which fields to exclude in the copied model.

  • update (Dict[str, Any] | None) – Optional dictionary of field-value pairs to override field values in the copied model.

  • deep (bool) – If True, the values of fields that are Pydantic models will be deep-copied.

Returns:

A copy of the model with included, excluded and updated fields as specified.

Return type:

Self

dict(*, include: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, exclude: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, by_alias: bool = False, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False) Dict[str, Any]#
Parameters:
Return type:

Dict[str, Any]

classmethod flag_col() str#

Return the flag column name for this check.

Return type:

str

flagged_keys() list[tuple[str, int]]#

Return (Metadata_ImageFile, Object_Label) pairs to curate.

Used by the GUI “Mark all flagged for removal” button. Requires the analyzed frame to carry both Metadata_ImageFile and Object_Label columns (the curation key used by STORE_REMOVED_KEYS). Returns an empty list when those columns are absent or when no rows were flagged.

Returns:

De-duplicated list of (image_file, object_label) tuples for rows where Flag=True.

Return type:

list[tuple[str, int]]

classmethod from_orm(obj: Any) Self#
Parameters:

obj (Any)

Return type:

Self

group_members() dict[tuple, list[tuple[str, int, Any]]]#

Map each group key to its member rows for worklists/galleries.

Walks the most recent analyzed frame and, for every group key produced by data.groupby(self.groupby, dropna=False), collects the rows that belong to it as (Metadata_ImageFile, Object_Label, member_value) tuples, where member_value is the row’s self.on value (the column the check operates on). The mapping preserves group iteration order.

Mirrors flagged_keys()’s guard: if the analyzed frame lacks either Metadata_ImageFile or the object-label column, an empty mapping is returned rather than raising.

Returns:

Ordered mapping of group key (always a tuple, even for a single groupby column) to a list of (image_file, object_label, member_value) tuples. Empty when the curation key columns are absent.

Return type:

dict[tuple, list[tuple[str, int, Any]]]

json(*, include: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, exclude: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, by_alias: bool = False, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False, encoder: Callable[[Any], Any] | None = PydanticUndefined, models_as_dict: bool = PydanticUndefined, **dumps_kwargs: Any) str#
Parameters:
Return type:

str

classmethod metric_col() str#

Return the metric column name for this check.

Return type:

str

model_computed_fields = {}#
model_config: ClassVar[ConfigDict] = {'arbitrary_types_allowed': True, 'extra': 'forbid', 'validate_assignment': True}#

Configuration for the model, should be a dictionary conforming to [ConfigDict][pydantic.config.ConfigDict].

classmethod model_construct(_fields_set: set[str] | None = None, **values: Any) Self#

Creates a new instance of the Model class with validated data.

Creates a new model setting __dict__ and __pydantic_fields_set__ from trusted or pre-validated data. Default values are respected, but no other validation is performed.

!!! note

model_construct() generally respects the model_config.extra setting on the provided model. That is, if model_config.extra == ‘allow’, then all extra passed values are added to the model instance’s __dict__ and __pydantic_extra__ fields. If model_config.extra == ‘ignore’ (the default), then all extra passed values are ignored. Because no validation is performed with a call to model_construct(), having model_config.extra == ‘forbid’ does not result in an error if extra values are passed, but they will be ignored.

Parameters:
  • _fields_set (set[str] | None) – A set of field names that were originally explicitly set during instantiation. If provided, this is directly used for the [model_fields_set][pydantic.BaseModel.model_fields_set] attribute. Otherwise, the field names from the values argument will be used.

  • values (Any) – Trusted or pre-validated data dictionary.

Returns:

A new instance of the Model class with validated data.

Return type:

Self

model_copy(*, update: Mapping[str, Any] | None = None, deep: bool = False) Self#
!!! abstract “Usage Documentation”

[model_copy](../concepts/models.md#model-copy)

Returns a copy of the model.

!!! note

The underlying instance’s [__dict__][object.__dict__] attribute is copied. This might have unexpected side effects if you store anything in it, on top of the model fields (e.g. the value of [cached properties][functools.cached_property]).

Parameters:
  • update (Mapping[str, Any] | None) – Values to change/add in the new model. Note: the data is not validated before creating the new model. You should trust this data.

  • deep (bool) – Set to True to make a deep copy of the model.

Returns:

New model instance.

Return type:

Self

model_dump(*, mode: Literal['json', 'python'] | str = 'python', include: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, exclude: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, context: Any | None = None, by_alias: bool | None = None, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False, exclude_computed_fields: bool = False, round_trip: bool = False, warnings: bool | Literal['none', 'warn', 'error'] = True, fallback: Callable[[Any], Any] | None = None, serialize_as_any: bool = False) dict[str, Any]#
!!! abstract “Usage Documentation”

[model_dump](../concepts/serialization.md#python-mode)

Generate a dictionary representation of the model, optionally specifying which fields to include or exclude.

Parameters:
  • mode (Literal['json', 'python'] | str) – The mode in which to_python should run. If mode is ‘json’, the output will only contain JSON serializable types. If mode is ‘python’, the output may contain non-JSON-serializable Python objects.

  • include (set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None) – A set of fields to include in the output.

  • exclude (set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None) – A set of fields to exclude from the output.

  • context (Any | None) – Additional context to pass to the serializer.

  • by_alias (bool | None) – Whether to use the field’s alias in the dictionary key if defined.

  • exclude_unset (bool) – Whether to exclude fields that have not been explicitly set.

  • exclude_defaults (bool) – Whether to exclude fields that are set to their default value.

  • exclude_none (bool) – Whether to exclude fields that have a value of None.

  • exclude_computed_fields (bool) – Whether to exclude computed fields. While this can be useful for round-tripping, it is usually recommended to use the dedicated round_trip parameter instead.

  • round_trip (bool) – If True, dumped values should be valid as input for non-idempotent types such as Json[T].

  • warnings (bool | Literal['none', 'warn', 'error']) – How to handle serialization errors. False/”none” ignores them, True/”warn” logs errors, “error” raises a [PydanticSerializationError][pydantic_core.PydanticSerializationError].

  • fallback (Callable[[Any], Any] | None) – A function to call when an unknown value is encountered. If not provided, a [PydanticSerializationError][pydantic_core.PydanticSerializationError] error is raised.

  • serialize_as_any (bool) – Whether to serialize fields with duck-typing serialization behavior.

Returns:

A dictionary representation of the model.

Return type:

dict[str, Any]

model_dump_json(*, indent: int | None = None, ensure_ascii: bool = False, include: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, exclude: set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None = None, context: Any | None = None, by_alias: bool | None = None, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_none: bool = False, exclude_computed_fields: bool = False, round_trip: bool = False, warnings: bool | Literal['none', 'warn', 'error'] = True, fallback: Callable[[Any], Any] | None = None, serialize_as_any: bool = False) str#
!!! abstract “Usage Documentation”

[model_dump_json](../concepts/serialization.md#json-mode)

Generates a JSON representation of the model using Pydantic’s to_json method.

Parameters:
  • indent (int | None) – Indentation to use in the JSON output. If None is passed, the output will be compact.

  • ensure_ascii (bool) – If True, the output is guaranteed to have all incoming non-ASCII characters escaped. If False (the default), these characters will be output as-is.

  • include (set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None) – Field(s) to include in the JSON output.

  • exclude (set[int] | set[str] | Mapping[int, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | Mapping[str, set[int] | set[str] | Mapping[int, IncEx | bool] | Mapping[str, IncEx | bool] | bool] | None) – Field(s) to exclude from the JSON output.

  • context (Any | None) – Additional context to pass to the serializer.

  • by_alias (bool | None) – Whether to serialize using field aliases.

  • exclude_unset (bool) – Whether to exclude fields that have not been explicitly set.

  • exclude_defaults (bool) – Whether to exclude fields that are set to their default value.

  • exclude_none (bool) – Whether to exclude fields that have a value of None.

  • exclude_computed_fields (bool) – Whether to exclude computed fields. While this can be useful for round-tripping, it is usually recommended to use the dedicated round_trip parameter instead.

  • round_trip (bool) – If True, dumped values should be valid as input for non-idempotent types such as Json[T].

  • warnings (bool | Literal['none', 'warn', 'error']) – How to handle serialization errors. False/”none” ignores them, True/”warn” logs errors, “error” raises a [PydanticSerializationError][pydantic_core.PydanticSerializationError].

  • fallback (Callable[[Any], Any] | None) – A function to call when an unknown value is encountered. If not provided, a [PydanticSerializationError][pydantic_core.PydanticSerializationError] error is raised.

  • serialize_as_any (bool) – Whether to serialize fields with duck-typing serialization behavior.

Returns:

A JSON string representation of the model.

Return type:

str

property model_extra: dict[str, Any] | None#

Get extra fields set during validation.

Returns:

A dictionary of extra fields, or None if config.extra is not set to “allow”.

model_fields = {'agg_func': FieldInfo(annotation=Union[Callable, str, list, dict, NoneType], required=False, default='first'), 'fail_threshold': FieldInfo(annotation=float, required=False, default=0.1, description='Normalized count divergence at which ``Status`` becomes ``"fail"`` and ``Flag=True``. Defaults to ``0.10``.'), 'groupby': FieldInfo(annotation=list[str], required=True, description='Columns that define a comparison unit. Must be present in both the metadata frame and the measurement frame passed', metadata=[_ColumnRefMarker('measurements')]), 'metadata': FieldInfo(annotation=DataFrame, required=True, description='Layout frame whose row count per ``groupby`` key is the expected colony count. Either a DataFrame or a path to a CSV or Parquet file. Excluded from serialization supply ``metadata_source`` instead when rebuilding from JSON.', exclude=True, metadata=[WithJsonSchema(json_schema={'type': 'object'}, mode=None)]), 'metadata_source': FieldInfo(annotation=Union[str, NoneType], required=False, default=None, description='Path to the layout CSV/Parquet, captured automatically when ``metadata`` is given as a path. This is the JSON-serializable handle to the layout: on reconstruction from ``pipeline.json`` the frame is re-read from here. Usually set implicitly; pass it explicitly only when reconstructing without a ``metadata`` frame.'), 'n_jobs': FieldInfo(annotation=int, required=False, default=1, alias_priority=2, validation_alias=AliasChoices(choices=['n_jobs', 'num_workers']), description='Worker count. Currently unused by the base ``analyze`` loop; kept on the signature for parity with :class:`SetAnalyzer`.'), 'on': FieldInfo(annotation=str, required=False, default='Object_Label', description='Measurement column the check operates on. Defaults to ``"Object_Label"`` since "detected" means "a measurement row exists".', metadata=[_ColumnRefMarker('measurements')]), 'unmatched_groups': FieldInfo(annotation=list, required=False, default_factory=list, description='Groups that the check could not evaluate (for example, expected counts whose group key never appeared in the data). Populated by subclasses that need to report missing combinations; empty by default.'), 'warn_threshold': FieldInfo(annotation=float, required=False, default=0.05, description='Normalized count divergence at which ``Status`` becomes ``"warn"``. Defaults to ``0.05``.')}#
property model_fields_set: set[str]#

Returns the set of fields that have been explicitly set on this model instance.

Returns:

A set of strings representing the fields that have been set,

i.e. that were not filled from defaults.

classmethod model_json_schema(by_alias: bool = True, ref_template: str = '#/$defs/{model}', schema_generator: type[~pydantic.json_schema.GenerateJsonSchema] = <class 'pydantic.json_schema.GenerateJsonSchema'>, mode: ~typing.Literal['validation', 'serialization'] = 'validation', *, union_format: ~typing.Literal['any_of', 'primitive_type_array'] = 'any_of') dict[str, Any]#

Generates a JSON schema for a model class.

Parameters:
  • by_alias (bool) – Whether to use attribute aliases or not.

  • ref_template (str) – The reference template.

  • union_format (Literal['any_of', 'primitive_type_array']) –

    The format to use when combining schemas from unions together. Can be one of:

    keyword to combine schemas (the default). - ‘primitive_type_array’: Use the [type](https://json-schema.org/understanding-json-schema/reference/type) keyword as an array of strings, containing each type of the combination. If any of the schemas is not a primitive type (string, boolean, null, integer or number) or contains constraints/metadata, falls back to any_of.

  • schema_generator (type[GenerateJsonSchema]) – To override the logic used to generate the JSON schema, as a subclass of GenerateJsonSchema with your desired modifications

  • mode (Literal['validation', 'serialization']) – The mode in which to generate the schema.

Returns:

The JSON schema for the given model class.

Return type:

dict[str, Any]

classmethod model_parametrized_name(params: tuple[type[Any], ...]) str#

Compute the class name for parametrizations of generic classes.

This method can be overridden to achieve a custom naming scheme for generic BaseModels.

Parameters:

params (tuple[type[Any], ...]) – Tuple of types of the class. Given a generic class Model with 2 type variables and a concrete model Model[str, int], the value (str, int) would be passed to params.

Returns:

String representing the new class where params are passed to cls as type variables.

Raises:

TypeError – Raised when trying to generate concrete names for non-generic models.

Return type:

str

classmethod model_rebuild(*, force: bool = False, raise_errors: bool = True, _parent_namespace_depth: int = 2, _types_namespace: MappingNamespace | None = None) bool | None#

Try to rebuild the pydantic-core schema for the model.

This may be necessary when one of the annotations is a ForwardRef which could not be resolved during the initial attempt to build the schema, and automatic rebuilding fails.

Parameters:
  • force (bool) – Whether to force the rebuilding of the model schema, defaults to False.

  • raise_errors (bool) – Whether to raise errors, defaults to True.

  • _parent_namespace_depth (int) – The depth level of the parent namespace, defaults to 2.

  • _types_namespace (MappingNamespace | None) – The types namespace, defaults to None.

Returns:

Returns None if the schema is already “complete” and rebuilding was not required. If rebuilding _was_ required, returns True if rebuilding was successful, otherwise False.

Return type:

bool | None

classmethod model_validate(obj: Any, *, strict: bool | None = None, extra: Literal['allow', 'ignore', 'forbid'] | None = None, from_attributes: bool | None = None, context: Any | None = None, by_alias: bool | None = None, by_name: bool | None = None) Self#

Validate a pydantic model instance.

Parameters:
  • obj (Any) – The object to validate.

  • strict (bool | None) – Whether to enforce types strictly.

  • extra (Literal['allow', 'ignore', 'forbid'] | None) – Whether to ignore, allow, or forbid extra data during model validation. See the [extra configuration value][pydantic.ConfigDict.extra] for details.

  • from_attributes (bool | None) – Whether to extract data from object attributes.

  • context (Any | None) – Additional context to pass to the validator.

  • by_alias (bool | None) – Whether to use the field’s alias when validating against the provided input data.

  • by_name (bool | None) – Whether to use the field’s name when validating against the provided input data.

Raises:

ValidationError – If the object could not be validated.

Returns:

The validated model instance.

Return type:

Self

classmethod model_validate_json(json_data: str | bytes | bytearray, *, strict: bool | None = None, extra: Literal['allow', 'ignore', 'forbid'] | None = None, context: Any | None = None, by_alias: bool | None = None, by_name: bool | None = None) Self#
!!! abstract “Usage Documentation”

[JSON Parsing](../concepts/json.md#json-parsing)

Validate the given JSON data against the Pydantic model.

Parameters:
  • json_data (str | bytes | bytearray) – The JSON data to validate.

  • strict (bool | None) – Whether to enforce types strictly.

  • extra (Literal['allow', 'ignore', 'forbid'] | None) – Whether to ignore, allow, or forbid extra data during model validation. See the [extra configuration value][pydantic.ConfigDict.extra] for details.

  • context (Any | None) – Extra variables to pass to the validator.

  • by_alias (bool | None) – Whether to use the field’s alias when validating against the provided input data.

  • by_name (bool | None) – Whether to use the field’s name when validating against the provided input data.

Returns:

The validated Pydantic model.

Raises:

ValidationError – If json_data is not a JSON string or the object could not be validated.

Return type:

Self

classmethod model_validate_strings(obj: Any, *, strict: bool | None = None, extra: Literal['allow', 'ignore', 'forbid'] | None = None, context: Any | None = None, by_alias: bool | None = None, by_name: bool | None = None) Self#

Validate the given object with string data against the Pydantic model.

Parameters:
  • obj (Any) – The object containing string data to validate.

  • strict (bool | None) – Whether to enforce types strictly.

  • extra (Literal['allow', 'ignore', 'forbid'] | None) – Whether to ignore, allow, or forbid extra data during model validation. See the [extra configuration value][pydantic.ConfigDict.extra] for details.

  • context (Any | None) – Extra variables to pass to the validator.

  • by_alias (bool | None) – Whether to use the field’s alias when validating against the provided input data.

  • by_name (bool | None) – Whether to use the field’s name when validating against the provided input data.

Returns:

The validated Pydantic model.

Return type:

Self

classmethod parse_file(path: str | Path, *, content_type: str | None = None, encoding: str = 'utf8', proto: DeprecatedParseProtocol | None = None, allow_pickle: bool = False) Self#
Parameters:
  • path (str | Path)

  • content_type (str | None)

  • encoding (str)

  • proto (DeprecatedParseProtocol | None)

  • allow_pickle (bool)

Return type:

Self

classmethod parse_obj(obj: Any) Self#
Parameters:

obj (Any)

Return type:

Self

classmethod parse_raw(b: str | bytes, *, content_type: str | None = None, encoding: str = 'utf8', proto: DeprecatedParseProtocol | None = None, allow_pickle: bool = False) Self#
Parameters:
  • b (str | bytes)

  • content_type (str | None)

  • encoding (str)

  • proto (DeprecatedParseProtocol | None)

  • allow_pickle (bool)

Return type:

Self

results() pandas.DataFrame#

Return the augmented frame stored by the most recent analyze().

Return type:

pandas.DataFrame

classmethod schema(by_alias: bool = True, ref_template: str = '#/$defs/{model}') Dict[str, Any]#
Parameters:
  • by_alias (bool)

  • ref_template (str)

Return type:

Dict[str, Any]

classmethod schema_json(*, by_alias: bool = True, ref_template: str = '#/$defs/{model}', **dumps_kwargs: Any) str#
Parameters:
  • by_alias (bool)

  • ref_template (str)

  • dumps_kwargs (Any)

Return type:

str

show(*args: Any, **kwargs: Any) Any#

QualityCheck plots are Plotly-only — see dash().

SetAnalyzer’s matplotlib show() is not implemented for QC because the QC tab is Plotly-driven. Raising rather than falling back to a placeholder so notebook users discover the right method.

Raises:

NotImplementedError – Always; use dash() instead.

Parameters:
Return type:

Any

classmethod status_col() str#

Return the status column name for this check.

Return type:

str

summary() pandas.DataFrame#

Return a one-row-per-group summary of the most recent analyze.

The aggregate columns are prefixed with ``qc_`` so they can never collide with a groupby column on reset_index — a plate-layout column literally named status or num_rows would otherwise raise. The summary therefore always carries the group key columns plus the four prefixed aggregates.

Returns:

DataFrame with columns [*self.groupby, "qc_n_members", "qc_n_flagged", "qc_worst_metric", "qc_status"]. qc_worst_metric is the extreme metric value in the bad direction across the group: group[metric_col].max() when _HIGHER_IS_BAD is True, else group[metric_col].min(). qc_status is the worst status across the group: "fail" wins over "warn" which wins over "pass".

Return type:

pandas.DataFrame

classmethod update_forward_refs(**localns: Any) None#
Parameters:

localns (Any)

Return type:

None

classmethod validate(value: Any) Self#
Parameters:

value (Any)

Return type:

Self

unmatched_groups: list#
groupby: ColumnRefList#
n_jobs: int#