tangram_metrics 0.7.0

Tangram makes it easy for programmers to train, deploy, and monitor machine learning models.
Documentation 
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use std::collections::BTreeMap;

#[derive(Debug, Clone, Default)]
pub struct Mode(Option<(usize, usize)>);

impl Mode {
	pub fn compute(input: &[usize]) -> Option<usize> {
		let mut histogram = BTreeMap::new();
		for value in input.iter() {
			*histogram.entry(value).or_insert(0) += 1;
		}
		histogram
			.into_iter()
			.max_by(|a, b| a.1.cmp(&b.1))
			.map(|label| *label.0)
	}
}