[−][src]Crate fanova
A Rust fANOVA (functional analysis of variance) implementation.
fANOVA provides a way to calculate feature importance.
Examples
use fanova::{FanovaOptions, RandomForestOptions}; use rand::{Rng, SeedableRng}; let mut feature1 = Vec::new(); let mut feature2 = Vec::new(); let mut feature3 = Vec::new(); let mut target = Vec::new(); let mut rng = rand::rngs::StdRng::from_seed([0u8; 32]); for _ in 0..100 { let f1 = rng.gen(); let f2 = rng.gen(); let f3 = rng.gen(); let t = f1 + f2 * 2.0 + f3 * 3.0; feature1.push(f1); feature2.push(f2); feature3.push(f3); target.push(t); } let mut fanova = FanovaOptions::new() .random_forest(RandomForestOptions::new().seed(0)) .fit(vec![&feature1, &feature2, &feature3], &target).unwrap(); let importances = (0..3) .map(|i| fanova.quantify_importance(&[i]).mean) .collect::<Vec<_>>(); assert_eq!( importances, vec![0.02744461966313835, 0.22991883769286145, 0.6288784011550144] );
References
Structs
Fanova | fANOVA object. |
FanovaOptions | fANOVA options. |
Importance | Importance of a feature set. |
RandomForestOptions | Random forest options. |
Enums
FitError | Possible errors which could be returned by |