Values from For Loop Iteration to save on an extra m.File

Hello, i have a .m-File with an For Loop Iteration. This .m-File calls another .m-File ( Main.m ) to solve some Variables ( for Example 'XXX' ) from the Iteration-Value PC

for PC=850:10:870

      EG=1286 

      Main 

      save test.dat XXX
end

So the Program should take every new Iteration-Step into the Main.m and solve Things in it ( for Example Variable 'XXX' ) and then save it to a new .m-File ( for Example test.dat ). The Output should looks like this:

Column1(Iteration-Steps)    Column2(Value of the Variable XXX form Main.m )
850                         64874
860                         65879
870                         69766

I hope you Guys understand my Problem, big thx!

Answer 1

[TAB]

Buff = zeros(numel(850:10:870),2);
Ctr = 1;
for PC=850:10:870

        EG=1286 
        Main 
        Buff(Ctr, 1) = PC;
        Buff(Ctr, 2) = XXX;
        Ctr = Ctr+1;

end

save test.dat Buff;

Answer 2

[Trier87]

Thank You, it works but ive found now a much easier way:

    data = [];
    for PC = 850:10:870

        step=PC
        EG=1286
        Main

    data = [data; step, XXX];
    end
    save test.dat data

i have a new Question, how i can now build EG=1286:10:1306 in this For-Loop operation, so i have the PC=850:10:870 and the EG=1286:10:1306 in a Loop.

It should calculate every value of PC and EG in the Main.m

Thank you Guys!

[TAB]

Thanks for posting your solution.

In your code you have not pre-initialized the variable - data and its size is growing in the loop. This makes the code to run slow as size of data will increase in the loop.

And regarding your new question, how your output will look in this case ?

[Trier87]

Thanks for the Information. My Output should like this:

Column1                      Column2                      Column3
(Iteration PC=850:10:870 )  (Iteration EG=1286:10:1306)   (Variable XXX)
850                          1286                         ...
860                          1286                         ...
870                          1286                         ...
---                          ---                          ---  
850                          1296                         ...
860                          1296                         ...
870                          1296                         ...
---                          ---                          ---
850                          1306                         ...
860                          1306                         ...
870                          1306                         ...

This would be fantastic if this could work :-D

[TAB]

Buff = zeros(numel(850:10:870)*numel(1286:10:1306),3);
Ctr = 1;

for EG = 1286:10:1306

      for PC=850:10:870
          Main
          Buff(Ctr, 1) = PC;
          Buff(Ctr, 2) = EG;
          Buff(Ctr, 3) = XXX;

          Ctr = Ctr+1;
      end

end
save test.dat Buff;

Answer 3

[Trier87]

Thanks again, it works fine. I have a last Question ;) Now i want make a 3D-plot Surface of this data/values. How i can load the values of the columns from test.dat into a plot and the next question is: Must i use the Interpolation-command to create this surface. How it should looks like

[TAB]

Trier87, Please post your different queries in separate question so that all can see them. In this way you can get quick response for your question.