How can I run cmg software with an input data file?

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Meng Yuan 2022-3-27

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https://ww2.mathworks.cn/matlabcentral/answers/1682034-how-can-i-run-cmg-software-with-an-input-data-file

回答： Shubham 2024-1-16

I am trying to couple the cmg software with my matlab code. However, I have to manually input the cmg generated data file name when I run the cmg-gem module with the following code:

system("gm201910.exe")

Can I make it automatic?

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Walter Roberson 2022-3-27

Unfortunately most of cmgl.ca requires a user account, including most of their documentation.

I see a hint that there might be a RunSim provided that can take the names of the dataset to process.

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Answer 1

Shubham 2024-1-16

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Hi Meng Yuan,

To automate the process of passing the CMG-generated data file name to the gm201910.exe program from MATLAB, you can use MATLAB's input/output redirection features. Assuming the CMG program accepts the data file name via standard input (stdin), you can create a script or use a command that pipes the file name into the program.

Here's a MATLAB code snippet that automatically provides the data file name to the CMG program:

% Define the name of your CMG data file
dataFileName = 'your_data_file.dat';
% Create a command that echoes the data file name and pipes it into gm201910.exe
commandStr = ['echo ' dataFileName ' | gm201910.exe'];
% Execute the command
status = system(commandStr);
% Check if the execution was successful
if status == 0
    disp('CMG program ran successfully.');
else
    disp('There was an error running the CMG program.');
end

Replace 'your_data_file.dat' with the actual name of your CMG data file. The echo command is used to pass the data file name to gm201910.exe. The | symbol is a pipe that redirects the output of the echo command to the input of gm201910.exe.

Please note that the exact command might differ based on the operating system you are using. The above example assumes you are on a Windows system. If you are on a Unix-like system (e.g., Linux or macOS), the command syntax might slightly differ.

If gm201910.exe requires a more complex interaction that cannot be handled by a simple echo (for example, multiple inputs or specific timing), you might need to use a more sophisticated method of automation, such as creating an input file with all the required inputs and then redirecting that file into the program, or using a MATLAB script to simulate the interactive inputs.