unsloth/studio/backend/utils/downsample.py
2026-06-13 03:13:46 +00:00

18 lines
652 B
Python

# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
"""Generic numeric downsampling utility."""
def downsample(values: list[float], target_count: int) -> list[float]:
"""Reduce a list to target_count points via evenly-spaced index sampling."""
if len(values) <= target_count:
return list(values)
if target_count <= 0:
return []
if target_count == 1:
return [values[-1]]
indices = [
round(i * (len(values) - 1) / (target_count - 1)) for i in range(target_count)
]
return [values[i] for i in indices]