Function volatility_annualized 

pub fn volatility_annualized(
    returns: &[f64],
    periods_per_year: f64,
) -> FinanceResult<f64>

Annualized volatility: volatility(returns) * sqrt(periods_per_year).

Examples

use finance_solution::{volatility_annualized, FinanceError};

assert!(volatility_annualized(&[0.01, 0.02], 12.0).is_ok());
match volatility_annualized(&[0.01, 0.02], 0.0) {
    Err(FinanceError::Unsolvable { message }) => assert!(message.contains("periods_per_year")),
    other => panic!("expected Unsolvable, got {other:?}"),
}