MATLAB: How to execute an M-file from Windows’ command line without opening MATLAB’s Command Window

MATLAB

I want to run a MATLAB script, but I do not want any GUI to be opened.

Currently, if I do the following:

> matlab -nosplash -nodesktop -r "x = 5; save('test.mat');"

it will still open MATLAB's Command Window.

Best Answer

You can either:

1. Include the "exit" command:

> matlab -nosplash -nodesktop -r "x = 5; save('test.mat'); exit"

This will however still leave the Command Window open until your script finishes.

2. Using MATLAB COM Automation Server (in VBScript)

You can refer to the first answer of the following thread for more information about this workaround:

https://stackoverflow.com/questions/6717688/how-do-i-hide-matlab-command-window-when-i-run-an-m-file-from-command-line

3. Using MATLAB Compiler

Compiling your code into an executable, which can then be executed would be the closest solution to the workflow you are trying to achieve.

Related Solutions

MATLAB: How to use “system” command without MATLAB environment

You can override an environment variable in the "system" command.

For example, on a Windows platform, the following code sets the PATH variable to "myPath", then calls the "system" command "dosCommand" with that value.

>> system(['set PATH=' myPath ' && ' dosCommand])

MATLAB: Matlab M-File

You should review the documentation on how to write a function, since your above code is not a correctly written function. First, come up with a name for your function, e.g. myFunction. Then create a new file called myFunction.m somewhere on the MATLAB path (e.g. your working directory). Then in that file put your code. E.g.,

function result = myFunction(V)
result = V;  % <-- allocate the result variable, copying all elements
%

% Insert your code here to create the result variable from the V variable
%
return
end

I will give you some hints about correcting your code:

Change this loop:

for i=1:1:6;  % <-- hard coded for exactly 6 elements

to this

for i=1:numel(V)  % <-- allows any size input

The following test has an error in the logic (compare this carefully with the requirement):

if [V(i)<0 | mod(V(i),2)==0 | mod(V(i),4)==0]

The following line has an error on the right hand side calculation (compare this carefully with the requirement):

    V(i)=i*i;

If you don't see what the errors are, step through a small example by hand and compare that to the code result. E.g., at the command line type this:

V=[10,4,7,-8,-3,-12];
myFunction(V)

Best Answer

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MATLAB: How to use “system” command without MATLAB environment

MATLAB: Matlab M-File

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