rustalib 1.0.9

A library of technical indicators for financial analysis, similar to TA-Lib
Documentation 
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use super::aroon::calculate_aroon;
use polars::prelude::*;

/// Calculates the Aroon Oscillator
///
/// # Arguments
///
/// * `df` - DataFrame containing the price data with high, low columns
/// * `window` - Window size for calculation (typically 25)
///
/// # Returns
///
/// Returns a PolarsResult containing the Aroon Oscillator Series (Aroon Up - Aroon Down)
pub fn calculate_aroon_osc(df: &DataFrame, window: usize) -> PolarsResult<Series> {
    let (aroon_up, aroon_down) = calculate_aroon(df, window)?;

    // Aroon Oscillator = Aroon Up - Aroon Down
    let aroon_osc = (&aroon_up - &aroon_down)?;

    Ok(aroon_osc.with_name("aroon_osc".into()))
}