identity

Identity transformation.

Classes

Identity

Identity transformation.

class Identity(metric, domain)

Bases: tmlt.core.transformations.base.Transformation

Identity transformation.

Parameters

• metric (tmlt.core.metrics.Metric) –

• domain (tmlt.core.domains.base.Domain) –

__init__(metric, domain)

Constructor.

Parameters

• metric (MetricMetric) – Input/Output metric.

• domain (DomainDomain) – Input/Output domain.

stability_function(d_in)

Returns the smallest d_out satisfied by the transformation.

The returned d_out is d_in.

Parameters

d_in (Any) – Distance between inputs under input_metric.

Return type

Any

__call__(data)

Return data.

Parameters

data (Any) –

Return type

Any

property input_domain

Return input domain for the measurement.

Return type

tmlt.core.domains.base.Domain

property input_metric

Distance metric on input domain.

Return type

tmlt.core.metrics.Metric

property output_domain

Return input domain for the measurement.

Return type

tmlt.core.domains.base.Domain

property output_metric

Distance metric on input domain.

Return type

tmlt.core.metrics.Metric

stability_relation(d_in, d_out)

Returns True only if close inputs produce close outputs.

See the privacy and stability tutorial (add link?) for more information.

Parameters

• d_in (Any) – Distance between inputs under input_metric.

• d_out (Any) – Distance between outputs under output_metric.

Return type

bool

__or__(other: Transformation) → Transformation

__or__(other: tmlt.core.measurements.base.Measurement) → tmlt.core.measurements.base.Measurement

Return this transformation chained with another component.