lamindb.core.LabelManager¶
- class lamindb.core.LabelManager(host)¶
Bases:
object
Label manager.
This allows to manage untyped labels
ULabel
and arbitrary typed labels (e.g.,CellLine
) and associate labels with features.Methods¶
- add(records, feature=None)¶
Add one or several labels and associate them with a feature.
- add_from(data)¶
Add labels from an artifact or collection to another artifact or collection.
- Return type:
None
Examples
>>> file1 = ln.Artifact(pd.DataFrame(index=[0, 1])) >>> file1.save() >>> file2 = ln.Artifact(pd.DataFrame(index=[2, 3])) >>> file2.save() >>> ulabels = ln.ULabel.from_values(["Label1", "Label2"], field="name") >>> ln.save(ulabels) >>> labels = ln.ULabel.filter(name__icontains = "label").all() >>> file1.ulabels.set(labels) >>> file2.labels.add_from(file1)
- get(feature, mute=False, flat_names=False)¶
Get labels given a feature.