pub fn pvi_batch_slice(
close: &[f64],
volume: &[f64],
sweep: &PviBatchRange,
kern: Kernel,
) -> Result<PviBatchOutput, PviError>pub fn pvi_batch_slice(
close: &[f64],
volume: &[f64],
sweep: &PviBatchRange,
kern: Kernel,
) -> Result<PviBatchOutput, PviError>