In MATLAB R2024b, 'arrayfun' cannot directly create a heterogenous array. However, you can accomplish this using 'horzcat' or an equivalent function.
First, when using 'arrayfun', specify the 'UniformOutput' name-value argument as 'false'. This will return a cell array, which can then be concatenated into a heterogenous array.
For example:
A = arrayfun(@(x) foo(x), X, 'UniformOutput', false);
A = horzcat(A{:});
The functions 'cat', 'horzcat', and 'vertcat' support creating heterogenous arrays of classes which derive from 'matlab.mixin.Heterogenous'. The documentation section A Class Hierarchy for Heterogeneous Arrays describes this in further detail.
