MATLAB: How to create a set subsets

Question

How can I create a set S that includes a set of subsets. This is how it would look like in python

S = [[1,4,7],[1,4],[4,5,7],[3,5,6],[2,3,6,7],[2,7]]

What's the correspondence in Matlab?

Answer 1

Use a cell array:

S = {[1,4,7],[1,4],[4,5,7],[3,5,6],[2,3,6,7],[2,7]}

Cell arrays are the simplest container class in MATLAB, they can store arrays of other classes, of any size. Note that there are two different ways to index a cell array, so read the documentation carefully:

• {} curly braces access the cell contents.
• () parentheses access the cells themselves.

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html

MATLAB does not have lists, so forget all about them. MATLAB has arrays of several different classes:

https://www.mathworks.com/help/matlab/matlab_prog/fundamental-matlab-classes.html

Note that each of your [...] forms one numeric array. It is very important to note that in MATLAB [] is a concatenation operator (and a few other things):

https://www.mathworks.com/help/matlab/matlab_prog/matlab-operators-and-special-characters.html

MATLAB does not have a "list" class!