CODEWITHSUNDEEP
multidimensional-arrayrustrust-ndarray
mabalenk
mabalenk

Reputation: 1043

How to remove element from 2D array in Rust

I need help making sense of Rust's ndarray remove_index() function. For example, I have a 3x3 two dimensional array:

use ndarray::{arr2};

let mut arr = arr2([1, 2, 3],
                   [4, 5, 6],
                   [7, 8, 9]);

I would like to remove the element with a value 5 at position [1,1]. How do I do that with the remove_index() function? I don't understand, how do I specify the axes and indices of a 2D array.

arr.remove_index(...);

Upvotes: 1

Views: 296

Answers (1)

Kaplan
Kaplan

Reputation: 3758

You could swap the item to be deleted to the edge:

arr.swap([1, 1], [1, 2]); // [1, 2, 3],
                          // [4, 6, 5],
                          // [7, 8, 9]

arr.swap([1, 1], [2, 1]); // [1, 2, 3],
                          // [4, 8, 6],
                          // [7, 5, 9]

Upvotes: 0

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