Module simd_rolling 

SIMD-accelerated rolling window operations

This module provides high-performance rolling window calculations using:

• Portable SIMD via the wide crate (works on stable Rust)
• Algorithmic optimizations (deque-based min/max, Welford’s algorithm for std)
• Smart thresholds to avoid SIMD overhead on small arrays

Functions

clip

Clip values (auto-selects SIMD or scalar)

diff

Diff operation (auto-selects SIMD or scalar)

pct_change

Percentage change (auto-selects SIMD or scalar)

rolling_max_deque

Deque-based rolling maximum - O(n) amortized complexity

rolling_mean

Rolling mean (auto-selects SIMD or scalar)

rolling_min_deque

Deque-based rolling minimum - O(n) amortized complexity

rolling_std

Rolling std (auto-selects Welford algorithm, always optimal)

rolling_std_welford

Welford’s algorithm for numerically stable rolling standard deviation

rolling_sum

Rolling sum (auto-selects SIMD or scalar)