How Can I create struct field in a loop?

Hello to all,

I have a problem with the struct. I have two nested for loops. With the innermost one I create a struct called 'strutt'. Once I get out of the internal one I have to allocate the whole structure to another structure in the different fields. The problem is that the field is always overwritten. here is the code. Can you help me?

for j=1:4
for i=1:10
    strutt.a(1,i)=importdata(...)
    strutt.b(1,i)=importdata(...)
    ..
end
    soluz=struct(sprintf('hi%d',j),strutt);
end

[Stephen23]

Rather than forcing numbers into fieldnames it would probably be more efficient to use a non-scalar structure

https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html

[Gianmarco Manzo]

Finally I have done with dinamically subfield:

https://it.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html

Answer 1

[prasanth s]

'struct' command creates new structure. you have to create new structure at the starting of loop. add new fields to the structure inside the loop.

soluz=struct;
for j=1:4
for i=1:10
    strutt.a(1,i)=1;
    strutt.b(1,i)=2;
end
    soluz.(sprintf('hi%d',j))=strutt;
end