Function encode_array

crates/openquant/src/microstructural_features.rs:493–501

(array: &[f64], encoding: &[(f64, char)])

}

pub fn encode_array(array: &[f64], encoding: &[(f64, char)]) -> String {
    let mut s = String::new();
    for v in array {
        if let Some(c) = find_nearest(encoding, *v) {
            s.push(c);
        }
    }
    s
}

fn parse_datetime(s: &str) -> Result<NaiveDateTime, chrono::ParseError> {
    NaiveDateTime::parse_from_str(s, "%Y-%m-%d %H:%M:%S%.f")