dataeval.metrics.stats.labelstats

dataeval.metrics.stats.labelstats(labels)

Calculates statistics for data labels

This function computes counting metrics (e.g., total per class, total per image) on the labels.

Parameters:

labels (ArrayLike, shape - [label] | [[label]] or (N,M) | (N,)) – Lists or NumPy array of labels. A set of lists where each list contains all labels per image - (e.g. [[label1, label2], [label2], [label1, label3]] or [label1, label2, label1, label3]). If a numpy array, N is the number of images, M is the number of labels per image.

Returns:

A dictionary-like object containing the computed counting metrics for the labels.

Return type:

LabelStatsOutput

Examples

Calculating the statistics on labels for a set of data

>>> stats = labelstats(labels)
>>> stats.label_counts_per_class
{'chicken': 12, 'cow': 5, 'horse': 4, 'pig': 7, 'sheep': 4}
>>> stats.label_counts_per_image
[3, 3, 5, 3, 2, 5, 5, 2, 2, 2]
>>> stats.image_counts_per_label
{'chicken': 8, 'cow': 4, 'horse': 4, 'pig': 7, 'sheep': 4}
>>> (stats.image_count, stats.class_count, stats.label_count)
(10, 5, 32)