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

Question

Trier87 2012-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/56403-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 )
                       64874
                       65879
                       69766

I hope you Guys understand my Problem, big thx!

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Answer 1

TAB 2012-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/56403-values-from-for-loop-iteration-to-save-on-an-extra-m-file#answer_68294

在 MATLAB Online 中打开

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;

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Answer 2

Trier87 2012-12-13

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https://ww2.mathworks.cn/matlabcentral/answers/56403-values-from-for-loop-iteration-to-save-on-an-extra-m-file#answer_68403

在 MATLAB Online 中打开

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!

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Trier87 2012-12-13

在 MATLAB Online 中打开

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 2012-12-13

在 MATLAB Online 中打开

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;

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Answer 3

Trier87 2012-12-16

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https://ww2.mathworks.cn/matlabcentral/answers/56403-values-from-for-loop-iteration-to-save-on-an-extra-m-file#answer_68637

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