Re: Combining cell (string) array elements

[Philip Nienhuis]

Puffinman wrote
> I have two string arrays such as: 
> 
> {'a' 'b' 'c'} 
> {'w' 'x' 'y' 'z'} 
> 
> and would like to combine them into a third 3x4 array with the elements: 
> 
> {'aw' 'ax' 'ay' 'az' 
>   'bw' 'bx' 'by' 'bz' 
>   'cw' 'cx' 'cy' 'cz'} 
> 
> Is there an elegant way I can do this without using ‘for’ loops? 

Define "elegant".

Anyway, depending on the exact "orientation" (row, col vector) of a and b,
where 
a = {'a' 'b' 'c'}
b = {'w' 'x' 'y' 'z'}
something like:

reshape (cellstr (cell2mat ([repmat(a, 4, 1)(:) repmat(b', 3, 1)])), 4, 3)'

should work without a for loop. Maybe you can simplify it a bit (I haven't
tried hard).

Note the lack of space between reshape and (...) between the brackets, and
also the transpose operators.

If you replace 3 and 4 by numel (a) and numel (b), resp., you can easily
generalize the solution.

Philip



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