Peroxide

Rust numeric library with R Syntax.

Latest README version

Corresponds with 0.2.4.

Usage

Initial Import

rust extern crate peroxide; use peroxide::*;

Matrix Declaration

```R

R

a = matrix(1:4, 2, 2, True) ```

rust // Peroxide let a = Matrix::new(vec![1,2,3,4], 2, 2, Row); // Rust like let a = matrix(vec![1,2,3,4], 2, 2, Row); // R like

Print

```R

R

a = matrix(1:4, 2, 2, True) print(a)

[,1] [,2]

[1,] 1 2

[2,] 3 4

```

rust // Peroxide let a = matrix(vec![1,2,3,4], 2, 2, Row); println!("{}", a); // c[0] c[1] // r[0] 1 2 // r[1] 3 4

Matrix operation

• If you want to do multiple operations on same matrix, then you should use clone because Rust std::ops consume value.

```R

R

a = matrix(1:4, 2, 2, T) b = matrix(1:4, 2, 2, F) print(a + b) print(a - b) print(a * b) print(a %*% b) ```

rust // Peroxide let a = matrix(vec![1,2,3,4], 2, 2, Row); let b = matrix(vec![1,2,3,4], 2, 2, Col); println!("{}", a.clone() + b.clone()); println!("{}", a.clone() - b.clone()); println!("{}", a.clone() * b.clone()); // Element-wise multiplication println!("{}", a % b); // Matrix multiplication // Consume -> You can't use a,b anymore.

Extract Column or Row

R a = matrix(1:4, 2, 2, T) print(a[,1]) print(a[,2]) print(a[1,]) print(a[2,])

rust //Peroxide let a = matrix(vec![1,2,3,4], 2, 2, Row); println!("{}", a.col(0)); println!("{}", a.col(1)); println!("{}", a.row(0)); println!("{}", a.row(1));

Functional Programming

```rust // Peroxide let a = matrix(vec![1,2,3,4], 2, 2, Row); println!("{}", a.fmap(|x| x + 1.0)); println!("{}", a.fmap(|x| x - 1.0)); println!("{}", a.fmap(|x| x * 2.0));

// Results // // c[0] c[1] // r[0] 2 3 // r[1] 4 5 // // c[0] c[1] // r[0] 0 1 // r[1] 2 3 // // c[0] c[1] // r[0] 2 4 // r[1] 6 8 ```

TODO

• ~~Extract row & col operator~~