Replacing multiple values in a structure

Question

I have a structure with sample being a numeric vector. I would like to replace the numbers in sample by sample/2. However, I do not know how to overcome the following error:

Scalar structure required for this assignment.

Any suggestions are more than welcome.

Example:

field1 = 'event';
value1 = {'A', 'B', 'C', 'D'};
field2 = 'sample';
value2 = 22;

A = struct(field1, value1, field2, value2);

What I want to do:

A.sample = round([A.sample]/2,0);

Could you post a minimal working example or an example of `A.event.sample` — JacobD, May 03 '17 at 13:53
Possible duplicate of [Modifying field values of structure! ](http://stackoverflow.com/questions/39768606/modifying-field-values-of-structure-matlab) — codeaviator, May 03 '17 at 14:00
Your code creates `A.event` and `A.sample`, not `A.event.sample` — Luis Mendo, May 03 '17 at 14:06
Note that I changed `A.event.sample` to `A.sample`, because error message is not related to `A.event.sample` mistake. — m7913d, May 03 '17 at 20:17

m7913d · Answer 1 · 2017-05-07T08:06:46.183

0

You should use the deal function to distribute your calculated matrix to the elements of your structure:

sampleCell = num2cell(round([A.sample]/2,0)); % first convert result to cell, to comply with the `deal` syntax
[A.sample] = deal(sampleCell{:});

edited May 07 '17 at 08:06

answered May 03 '17 at 20:09

m7913d

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Replacing multiple values in a structure

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