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extern crate num_traits;
use num_traits::NumAssign;
use crate::core::Mat;
pub fn vec_to_column_mat<T: NumAssign + Copy>(v: &Vec<T>) -> Mat<T> {
let mut m: Mat<T> = Vec::new();
for i in v {
m.push(vec![*i]);
}
return m;
}
#[cfg(test)]
mod tests {
use super::*;
extern crate rand;
use rand::{thread_rng, Rng};
#[test]
fn create_column_vec() {
let v: Mat<i32> = vec_to_column_mat(&vec![1, 2, 3]);
assert_eq!(v, vec![vec![1], vec![2], vec![3]])
}
#[test]
fn column_vec_4() {
let mut rng = thread_rng();
for _ in 1..10 {
let a = rng.gen_range(0, 10);
let b = rng.gen_range(0, 10);
let c = rng.gen_range(0, 10);
let d = rng.gen_range(0, 10);
let v = vec_to_column_mat(&vec![a, b, c, d]);
let w = vec![vec![a], vec![b], vec![c], vec![d]];
assert_eq!(v, w);
}
}
#[test]
fn column_vec_3() {
let mut rng = thread_rng();
for _ in 1..10 {
let a = rng.gen_range(0, 10);
let b = rng.gen_range(0, 10);
let c = rng.gen_range(0, 10);
let v = vec_to_column_mat(&vec![a, b, c]);
let w = vec![vec![a], vec![b], vec![c]];
assert_eq!(v, w);
}
}
#[test]
fn column_vec_2() {
let mut rng = thread_rng();
for _ in 1..10 {
let a = rng.gen_range(0, 10);
let b = rng.gen_range(0, 10);
let v = vec_to_column_mat(&vec![a, b]);
let w = vec![vec![a], vec![b]];
assert_eq!(v, w);
}
}
#[test]
fn column_vec_1() {
let mut rng = thread_rng();
for _ in 1..10 {
let a = rng.gen_range(0, 10);
let v = vec_to_column_mat(&vec![a]);
let w = vec![vec![a]];
assert_eq!(v, w);
}
}
}