tensor.gather

   fn gather(self: @Tensor<T>, indices: Tensor<i32>, axis: Option<i32>) -> Tensor<T>;

Gather entries of the axis dimension of data.

Args

• self(@Tensor<T>) - The input tensor.

• indices(Tensor<i32>) - Tensor of indices.

• axis(Option<i32>) - Axis to gather on. Default: axis=0.

Panics

• Panics if index values are not within bounds [-s, s-1] along axis of size s.

Returns

A new Tensor<T> .

Example

use core::array::{ArrayTrait, SpanTrait};

use orion::operators::tensor::{TensorTrait, Tensor, U32Tensor};

fn gather_example() -> Tensor<u32> {
    let tensor = TensorTrait::<u32>::new(
        shape: array![2, 3].span(), 
        data: array![[ 1, 2, 3],[4, 5, 6]].span(), 
    );
    let indices = TensorTrait::<i32>::new(
        shape: array![1, 1].span(), 
        data: array![1, 0].span(), 
    );

    return tensor.gather(
        indices: indices, 
        axis: Option::None(()), 
    );
}
>>> [[4. 5. 6.]
     [1. 2. 3.]]