zigzag

// ZigZag Swing Leg Engine
// Defaults of "zigzag" (see the indicator reference)
let params = HashMap::from([
    ("depth".to_string(), 12.0),
    ("deviation_pct".to_string(), 5.0),
]);
let mut indicator = build_checked("zigzag", &params)?;

for bar in &bars {
    if let Some(output) = indicator.on_bar(bar) {
        // output.value, output.extra[...], indicator.alerts()
    }
}