MATLAB: How to create used input struct names

MATLABstructstructures

Hi. I created a struct,

data = struct()

I would like to add fields to it based on user input from app designer.

For example user writes a number '125' as input, then I want to create field called 'laserDist123mm' and add it to data struct.

data.laserDist123mm = 199;

equal to something.

is there any way to do this?

I want to add the new fields dynamically…

Best Answer

You could use setfield as

data = setfield(data, 'laserDist123mm', 199)

or as you have shown

data.laserDist123mm = 199;

which will add the field dynamically to the structure.

Related Solutions

MATLAB: How to add a new field in astruct

setfield(test,'NewField',1)

MATLAB: Get data from multi-level struct using strings

You can use setfield and getfield with nested fields. Unfortunately the help description is quite vague on how to do this, but all you need to do is supply all the fieldnames individually:

>> val  = 1;
>> name = 'a.b.c';
>> C = regexp(name,'\.','split');
>> data = setfield(struct(),C{:},val);
>> data.a.b.c
ans =  1

This is much more reliable than using eval, although it is possible that setting fields like this is also not permitted within a parfor loop, but it is worth a try.

Best Answer

Related Solutions

MATLAB: How to add a new field in astruct

MATLAB: Get data from multi-level struct using strings

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