Function compute_baseline_mean 

pub fn compute_baseline_mean(
    healthy_data: &[f64],
    num_signals: usize,
    num_windows: usize,
    mean_out: &mut [f64],
)

Compute the per-signal mean from a healthy window.

Arguments

• healthy_data - row-major [window][signal], immutable
• num_signals - number of signals per window
• num_windows - number of healthy windows
• mean_out - output buffer for per-signal means