How do I set variables for a code through txt file?

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Konstantinos Angelos Maskalaris 2021-3-31

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https://ww2.mathworks.cn/matlabcentral/answers/789134-how-do-i-set-variables-for-a-code-through-txt-file

评论： Sulaymon Eshkabilov 2021-3-31

I have build my code but my professor wants me to be able to import the initial variables through a text file. For example variables x, y, z that are needed for the program to run. What exactly do I write in that text file? And do I simply call it through import data? Also he wants me to make the program create a text file with the results automatically.

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Stephen23 2021-3-31

Perhaps you could define them in a script (which is a text file).

Sulaymon Eshkabilov 2021-3-31

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If I understood your question ocrrectly, you'd need to write such a code that would import data from *.txt file for your variables x, y, z. And then after some calculations, it should export your data to another *.txt file. If this is the case, then you can write a code something similar to this one:

D0=load('IN.txt');  % Data Import from txt file called IN.txt
x=D0(1);            % assign the imported data to x. Note there might be many values as well    
y=D0(2);            % assign the imported data to y.  
z=D0(3);            % assign the imported data to z.  
F = ...             % Do all necessary calculations        
dlmwrite("OUT.txt", F)   % Export the computed values to an external file called OUT.txt