smartcore 0.4.8

Machine Learning in Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

//! Traits to indicate that float variables can be viewed as categorical
//! This module assumes

use crate::numbers::realnum::RealNumber;

pub type CategoricalFloat = u16;

// pub struct CategoricalFloat(u16);
const ERROR_MARGIN: f64 = 0.001;

pub trait Categorizable: RealNumber {
    type A;

    fn to_category(self) -> CategoricalFloat;

    fn is_valid(self) -> bool;
}

impl Categorizable for f32 {
    type A = CategoricalFloat;

    fn to_category(self) -> CategoricalFloat {
        self as CategoricalFloat
    }

    fn is_valid(self) -> bool {
        let a = self.to_category();
        (a as f32 - self).abs() < (ERROR_MARGIN as f32)
    }
}

impl Categorizable for f64 {
    type A = CategoricalFloat;

    fn to_category(self) -> CategoricalFloat {
        self as CategoricalFloat
    }

    fn is_valid(self) -> bool {
        let a = self.to_category();
        (a as f64 - self).abs() < ERROR_MARGIN
    }
}