pub fn slow_sd(
bars: &[OHLCV],
dates: &[NaiveDate],
monthly: bool,
) -> Vec<[f64; 6]>Expand description
SD’s reading on slower bars (weekly or monthly), mapped back to days.
Day i sees only completed slow bars: the last week (or month) that
ended before the one day i belongs to. Unusable values become 0
(neutral), so a young listing is not dropped, merely uninformed.