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assigning a number to a specific struct (1 to 9) using a for loop

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JamJan on 31 May 2018
Closed: MATLAB Answer Bot on 20 Aug 2021
In my research I have several participants, named AT_110001 to AT_110009. I have made structures containing data, however I want to add a field to each one with a for loop. How I did this until now:
for i = 1:9
[AT_11000(i)(:).Sheet] = deal(['Sheet', num2str(i)]);
But this does not work, how can I make this work?
  1 Comment
Stephen on 31 May 2018
Dynamically accessing variable names is one way that beginners force themselves into writing slow, complex, buggy code that is hard to debug. Red this to know why:
The simpler solution is to use a non-scalar structure, which makes this task trivially easy with indexing.

Answers (1)

Ameer Hamza
Ameer Hamza on 31 May 2018
This type of AT_11000(i)(:) chained indexing is not supported in MATLAB. Also, you didn't mention the fields of your struct object. I assume you want to do something like this
[AT_11000.Sheet] = deal(['Sheet', num2str(i)]);
without the for loop. The syntax is correct, but I don't know it is doing what you want because you didn't share any sample dataset.


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