Lib.rs

rapi - A safe and user friendly R extension interface.

This library aims to provide an interface that will be familiar to first-time users of Rust or indeed any compiled language.

Anyone who knows the R library should be able to write R extensions.

This library is just being born, but goals are:

Implement common R functions such as c() and print()

Example:

let v = c!(1, 2, 3);
let l = list!(a=1, b=2);
print!(v, l);

Provide a wrapper for r objects.

Example:

let s = RObj::from("hello");
let i = RObj::from(1);
let r = RObj::from(1.0);

Provide iterator support for creation and consumption of r vectors.

Example:

let res = (1..=100).iter().collect::<RObj>();
for x in res {
    print!(x);
}

Provide a procedural macro to adapt Rust functions to R

Example:

#[derive(RCallable)]
fn fred(a: i32) -> i32 {
    a + 1
}

In R:

result <- .Call("fred", 1)