MATLAB: How to save variables with in the function with a new file name with every iteration.

Question

As i asked in previous question http://it.mathworks.com/matlabcentral/answers/269266-how-to-save-whole-work-space-with-a-new-file-name-with-every-iteration#answer_210669

I tried to save my work space with a different file name for every iteration but it doesn't save any variable inside the function.? I want to save the variables of the function in every iteration.

As I am calling a function Hexagon so it runs for 20 seconds and it generates some output so I want to save work space of Hexagon function with a file name start with MS_Num and then MS_Num value every time it takes.

clc
clear all
close all
sizeL  = 100;
radius = 10;
Num_MS = [1500 2000 3000 4000 5000 6000 7000 8000 9000 10000];
for i = 1 : 10
    MS_Num = Num_MS(i);
    Hexagon(sizeL,radius,MS_Num);
end

I will be happy if you can guide me. Thanks

Answer 1

Well you're not constructing a file name at all, and of course you're not then using that file name in a call to save() at all, so it's not surprising that no variables get saved to a file. Please see the FAQ for sample code to do what you want:

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

You'll see you can call sprintf() inside the loop to create a filename, then use save

for i = 1 : 10
    MS_Num = Num_MS(i);
    Hexagon(sizeL,radius,MS_Num);
    thisBaseFileName = sprintf('MS_Num%d.mat', MS_Num);
    fullFileName = fullfile(pwd, thisBaseFileName);
    save(fullFileName, 'var1', 'var2', 'var3'); % Whatever variables you want.
end

Replace 'var1', etc. with the names of whatever variables you want to save in the mat file.