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use crate::evaluator::*; use itertools::Itertools; #[derive(Clone, Default, Debug)] pub struct MaximumTimeInterval {} impl MaximumTimeInterval { pub fn new() -> Self { Self {} } } lazy_info!( MAXIMUM_TIME_INTERVAL_INFO, size: 1, min_ts_length: 2, t_required: true, m_required: false, w_required: false, sorting_required: true, ); impl<T> FeatureEvaluator<T> for MaximumTimeInterval where T: Float, { fn eval(&self, ts: &mut TimeSeries<T>) -> Result<Vec<T>, EvaluatorError> { self.check_ts_length(ts)?; let dt = ts.t.sample .iter() .tuple_windows() .map(|(&a, &b)| b - a) .max_by(|a, b| a.partial_cmp(b).unwrap()) .unwrap(); Ok(vec![dt]) } fn get_info(&self) -> &EvaluatorInfo { &MAXIMUM_TIME_INTERVAL_INFO } fn get_names(&self) -> Vec<&str> { vec!["ANTIFEATURE_maximum_time_interval"] } } #[cfg(test)] #[allow(clippy::unreadable_literal)] #[allow(clippy::excessive_precision)] mod tests { use super::*; use crate::tests::*; eval_info_test!(maximum_time_interval_info, MaximumTimeInterval::default()); feature_test!( maximum_time_interval, [Box::new(MaximumTimeInterval::new())], [9.0], [0.0_f32, 0.5, 0.6, 1.6, 10.6], ); }