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use_statistics_summary_helpers/
basic_usage.rs

1use use_statistics::{
2    mean, median, population_std_dev, population_variance, sample_std_dev, sample_variance,
3};
4
5fn main() -> Result<(), use_statistics::StatisticsError> {
6    let values = [2.0, 4.0, 4.0, 4.0, 5.0, 5.0, 7.0, 9.0];
7
8    assert!((mean(&values)? - 5.0).abs() < 1.0e-12);
9    assert!((median(&values)? - 4.5).abs() < 1.0e-12);
10    assert!((population_variance(&values)? - 4.0).abs() < 1.0e-12);
11    assert!((population_std_dev(&values)? - 2.0).abs() < 1.0e-12);
12
13    let sample = [1.0, 2.0, 3.0, 4.0];
14
15    assert!((sample_variance(&sample)? - 1.666_666_666_666_666_7).abs() < 1.0e-12);
16    assert!((sample_std_dev(&sample)? - 1.290_994_448_735_805_6).abs() < 1.0e-12);
17
18    Ok(())
19}