persistent_volume_profile

// Fixed-price-grid volume profile with real bin lifecycle (birth/growth/expiry across updates) and a per-bin absorption profile
// Defaults of "persistent_volume_profile" (see the indicator reference)
let params = HashMap::from([
    ("bin_width".to_string(), 1.0),
    ("lookback".to_string(), 70.0),
]);
let mut indicator = build_checked("persistent_volume_profile", &params)?;

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