Multidimensional indexing from tuple/list in Python? [duplicate]

Question

I would like the simplest way to an element of a multidimensional array in Python from a tuple/list of the indexes.

I.e. f( M, (a,b,c) ) returns M[a][b][c]

Is there a straightforward way to get this without coding it myself?

Is your M a list of lists? Did you consider if numpy.array would be more suitable for your need? — Imperishable Night
– Imperishable Night, Commented Jun 19, 2019 at 20:36

Mariano Ezequiel Andres · Accepted Answer · 2019-06-19 21:44:14Z

0

You can use numpy arrays for that.

Example:

import numpy as np
x = [ [[1,1,1],[1,1,1], [1,1,1]], [[2,2,2],[2,2,2],[2,2,2]], [[3,3,3], [3,3,3], [3,3,3]]]
matrix = np.array(x)
print(matrix[0,0,0]) # prints first element in matrix

answered Jun 19, 2019 at 21:44

Mariano Ezequiel Andres

413 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ThePopMachine Over a year ago

Wait, that syntax can't be right, right? Do you mean matrix[(0,0,0)] ?

Mariano Ezequiel Andres Over a year ago

Both work. You can also use matrix[(0,0,0)]. Just copy the script and test it on python terminal. Remember to install numpy via pip install numpy

Collectives™ on Stack Overflow

Multidimensional indexing from tuple/list in Python? [duplicate]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related