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use crate::evaluator::*;
#[derive(Clone, Default, Debug)]
pub struct PercentAmplitude {}
lazy_info!(
PERCENT_AMPLITUDE_INFO,
size: 1,
min_ts_length: 1,
t_required: false,
m_required: true,
w_required: false,
sorting_required: false,
);
impl PercentAmplitude {
pub fn new() -> Self {
Self {}
}
}
impl<T> FeatureEvaluator<T> for PercentAmplitude
where
T: Float,
{
fn eval(&self, ts: &mut TimeSeries<T>) -> Result<Vec<T>, EvaluatorError> {
self.check_ts_length(ts)?;
let m_min = ts.m.get_min();
let m_max = ts.m.get_max();
let m_median = ts.m.get_median();
Ok(vec![T::max(m_max - m_median, m_median - m_min)])
}
fn get_info(&self) -> &EvaluatorInfo {
&PERCENT_AMPLITUDE_INFO
}
fn get_names(&self) -> Vec<&str> {
vec!["percent_amplitude"]
}
}
#[cfg(test)]
#[allow(clippy::unreadable_literal)]
#[allow(clippy::excessive_precision)]
mod tests {
use super::*;
use crate::tests::*;
eval_info_test!(percent_amplitude_info, PercentAmplitude::default());
feature_test!(
percent_amplitude,
[Box::new(PercentAmplitude::new())],
[96.0],
[1.0_f32, 1.0, 1.0, 2.0, 4.0, 5.0, 5.0, 98.0, 100.0],
);
}