Change of saving folder with each iteration

I want to set path where to save a file. But this saving function is in loop and name of saving variable is changing every iteration.

for k....
  for l......
 filename = [ 'delta',num2str(l) ,num2str(k), '.mat'];
  save(filename,'delta')
  end 
end

and i want to change name of folder where to save also with every iteration.

filepath=['c:\....\' int2str(l) '\'];

Thanks for help!!

Answer 1

[Walter Roberson]

Change the

save(filename,'delta')

to

save(fullfile(filepath, filename), 'delta');