Problem 375. N-Dimensional Array Slice

@bmtran (Bryant Tran)

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Given an N-dimensional array, A, an index, I, and a dimension, d, return the I th elements of A in the d dimension.

For Example,

    array_slice( A, 5, 3 )

is equivalent to

    A(:,:,5)

Note: eval and str2func cannot be used. This is a Cody restriction.

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1546 Solutions

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Last Solution submitted on Jun 12, 2026

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Massimo Zanetti on 20 Oct 2016

What test 3 means???

Abhishek Sahoo on 16 Apr 2017

The question is simple yet really well thought. One of my very fundamental concepts got clarified after solving this problem.

Fulaninho de Tal on 16 Jun 2017

Please, edit the problem to make it clear 'eval' cannot be used.

Rafael Hernandez-Walls on 21 Aug 2017

I think same like Fulaninho de Tal, You need edit the problem and it clear 'eval' and 'str2func' cannot be used.

Kevin Hellemans on 24 Apr 2020

How do do want to handle when the index is bigger than the size of the array? In solution 2 or 3 you enter a 5x5 array, but request slice index 10.

Tung Van Nguyen on 16 May 2021

i like it

David Verrelli on 29 Jul 2021

Massimo Zanetti & Kevin Hellemans: in Test 3 the value 10 is entered as the dimension argument (not the index argument, which has a value of 1).
Thus in Test 3 the general solution would be A(:, :, :, :, :, :, :, :, :, 1).
—DIV

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