MATLAB: How to concatenate 2 cell arrays containing strings

Question

I have something like this

x = arrayfun(@(i) sprintf("%s%i", 'xx', i), (0:6)');

which generates a 7×1 string array and behaves the way I want.

But I want to apply this to a variety of prefix strings as in.

s = ["xx"; "yy"];
x = arrayfun(@(s) arrayfun(@(i) sprintf("%s%i", 'LA', i), (0:6)'), s);

But this raises an error and changing it to

x = arrayfun(@(s) arrayfun(@(i) sprintf("%s%i", 'LA', i), (0:6)'), s, 'UniformOutput', false);

runs, but now generates a 2×1 cell array, each cell containing a 7×1 string array.

What I really want is a 14×1 string array. cell2mat does not work for this.

I realise I can get this done with a loop, but I prefer to code (and think) declaratively. Can this be done without a loop?

Answer 1

vertcat( x{:} )