Function autograd::ops::variable

pub fn variable<T: Float, D: Dimension>(arr: Array<T, D>) -> Tensor<T>

Creates a shared variable tensor from an ndarray.

A shared variable can be mutated with gradient descent methods implemented in autograd::gradient_descent_ops. For the usages, see https://github.com/perrier1034/rust-autograd/tree/master/examples.

extern crate ndarray;
extern crate autograd as ag;

let ref x: ag::Tensor<f64> = ag::variable(ndarray::arr1(&[2.]));
let ref y: ag::Tensor<f64> = 3. * x;

assert_eq!(6., y.eval(&[]).unwrap()[0]);