Retreiving values from one structure and saving it to another

I have a structure -MatFile.Project.Planning.A1(A2, A3, etc). I need to access these values with 'i' varying from 1 to 'n'. These values have to be stored in another structure -MatFile.Project.PreProcess.

I have tried using the following code, but it does not seem to work.

       for i=1:length(num_sequence)
          dat=eval(['MatFile.Project.Planning.A',num2str(i)]);
          eval(['MatFile.Project.PreProcess.A',num2str(i)'])=dat;
    end

What could be the best way to store the values under 'Planning.A1 (A2)' etc?

Answer 1

[Walter Roberson]

for i = 1 : length(num_sequence)
  fn = sprintf('A%d', i);
  MatFile.Project.PreProcess.(fn) = MatFile.Project.Planning.(fn);
end

[Ashish]

Thanks Walter. You saved my day!