lenskit.metrics.ListLength#
- class lenskit.metrics.ListLength#
Bases:
ListMetricReport the length of the output (recommendation list or predictions).
- Stability:
- Caller (see Stability Levels).
- __init__()#
Methods
__init__()extract_list_metrics(data, /)Return the given per-list metric result.
measure_list(recs, test)Compute the metric value for a single result list.
summarize(values)Summarize per-list metric values
Attributes
defaultlabel- measure_list(recs, test)#
Compute the metric value for a single result list.
Individual metric classes need to implement this method.
- summarize(values)#
Summarize per-list metric values
- Returns:
A dictionary containing mean, median, and std.