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use nalgebra::DVector;
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#[test]
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fn test_variance_new() {
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let long_repeating_vector = DVector::repeat(10_000, 100000000.0);
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assert_eq!(long_repeating_vector.variance(), 0.0);
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let short_vec = DVector::from_vec(vec![1., 2., 3.]);
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assert_eq!(short_vec.variance(), 2.0 / 3.0);
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}
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