How To Generate Field Names from Variables

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Krzysztof
Krzysztof il 21 Nov 2013
The following code behaves rather unexpectedly to me:
r .ab = 'cd';
try assert (r .([ 'a'; 'b' ]))
catch e
assert (all (e .identifier == 'MATLAB:nonExistentField'))
end
assert (all (r .([ 'ax'; 'bx' ]) == 'cd'));
It seems that MATLAB considers only (fieldname (:, 1)), except when there is only one column, in which case it considers only (fieldname (1)). All this is undocumented. Isn’t that weird? I would expect MATLAB to error out with 'mustBeFieldName' in both cases instead.

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