NumberNewDiaObjectsMetricTask

NumberNewDiaObjectsMetricTask computes the number of DIAObjects created when processing data through source association (as the ap_association.numNewDiaObjects metric). It requires task metadata as input, and can operate at image-level or coarser granularity.

Processing summary

NumberNewDiaObjectsMetricTask reads AssociationTask statistics from task metadata associated with one or more processed images. It uses these statistics to count the number of new DIAObjects added when processing those images.

Python API summary

from lsst.ap.association.metrics import NumberNewDiaObjectsMetricTask

classNumberNewDiaObjectsMetricTask(**kwargs)

Task that computes the number of DIASources that create new DIAObjects in an image, visit, etc...

attributeconfig

Access configuration fields and retargetable subtasks.

methodrun(metadata)

Compute a measurement from science task metadata...

See also

See the NumberNewDiaObjectsMetricTask API reference for complete details.

Butler datasets

Input datasets

metadata

The metadata of the top-level command-line task (e.g., ProcessCcdTask, ApPipeTask) being instrumented. Because the metadata produced by each top-level task is a different Butler dataset type, this dataset must be explicitly configured when running NumberNewDiaObjectsMetricTask or a MetricsControllerTask that contains it.

Retargetable subtasks

No subtasks.

Configuration fields

connections

Data type

lsst.pipe.base.config.Connections

Field type

ConfigField

Configurations describing the connections of the PipelineTask to datatypes

metadataDimensions

Default

{'visit', 'detector', 'instrument'}

Field type

str ListField

Override for the dimensions of the ‘metadata’ input, when instrumenting Tasks that don’t produce one metadata object per visit.

saveMetadata

Default

True

Field type

bool Field

Flag to enable/disable metadata saving for a task, enabled by default.