matflow.ValuePerturbation

class matflow.ValuePerturbation(name, path=None, multiplicative_factor=1, additive_factor=0)

Bases: ValuePerturbation

A perturbation applied to a value.

Methods

from_json_like	Make an instance of this class from JSON (or YAML) data.
from_spec	Construct an instance from a specification dictionary.
make_persistent	Save value to a persistent workflow.
to_dict	Serialize this object as a dictionary.
to_json_like	Serialize this object as an object structure that can be trivially converted to JSON.

Attributes

additive_factor	The additive factor to apply.
app
multiplicative_factor	The multiplicative factor to apply.
path	The path to the value(s) to perturb.
value	The value itself.
workflow	The workflow containing this input value.
name	The name of this perturbation.

Parameters:

• name (str) –

• path (Sequence[str | int | float] | None) –

• multiplicative_factor (int | float | number | None) –

• additive_factor (int | float | number | None) –

additive_factor: Numeric | None = 0

The additive factor to apply.

app = App(name='MatFlow', version='0.3.0a132')

classmethod from_json_like(json_like, shared_data=None)

Make an instance of this class from JSON (or YAML) data.

Parameters:

• json_like (Union[Dict, List]) – The data to deserialise.

• shared_data (Optional[Dict[str, ObjectList]]) – Shared context data.

Return type:

The deserialised object.

classmethod from_spec(spec)

Construct an instance from a specification dictionary.

make_persistent(workflow, source)

Save value to a persistent workflow.

Returns:

• String is the data path for this task input and single item integer list

• contains the index of the parameter data Zarr group where the data is

• stored.

Parameters:

• workflow (Workflow) –

• source (Dict) –

Return type:

Tuple[str, List[int], bool]

multiplicative_factor: Numeric | None = 1

The multiplicative factor to apply.

name: str

The name of this perturbation.

path: Sequence[str | int | float] | None = None

The path to the value(s) to perturb.

to_dict()

Serialize this object as a dictionary.

to_json_like(dct=None, shared_data=None, exclude=None, path=None)

Serialize this object as an object structure that can be trivially converted to JSON. Note that YAML can also be produced from the result of this method; it just requires a different final serialization step.

property value

The value itself.

property workflow

The workflow containing this input value.