MATLAB: What is the difference between starting a MATLAB script from MATLAB or from a batch/shell script

MATLAB

I would like to know the difference between starting a .m script directly in MATLAB or start it with the -r option from a batch file / shell script with the -r option.

Best Answer

This difference has been removed in MATLAB 7.4 (R2007a). If you are using a previous version, read the following:

When starting MATLAB with the -r option from a batch file or a shelll script, the MATLAB initialization has not been performed completely. To work around this behavior, add a PAUSE command to your script or start MATLAB using this command:

 matlab -r "pause(10); myscript"

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MATLAB: How to pass Perl variables when starting MATLAB with the -r option and a MATLAB function

This has been incorporated into the Release 2007a documentation (R2007a). For previous product releases, read below:

Consider you have a MATLAB function test, which takes in one input variable:

function test(x)
plot(1:x)

To start MATLAB from the command prompt, with the function TEST, you use the following command:

 matlab -r test(10)

On some platforms, you may need to use double quotes when specifying the function:

 matlab -r "test(10)"

This command will start a session of MATLAB and call the function TEST with the input argument 10. Now, consider a scenario where you want to pass a Perl variable as the input parameter instead of the constant value 10. This can be done as follows:

1. Create a Perl Script as follows:

        #!/usr/local/bin/perl
        $val = 10;
        system('matlab -r "test(' . ${val} . ')"');

2. Invoke the Perl Script at the command prompt using a Perl interpreter.

MATLAB: External shell scripts in compiled GUI

I figured it out - for future reference, the best sequence of steps seems to be: Use file paths that are NOT relative to installation directory First, compile ONLY the .m files (not the .sh or .jar that will have to be called) The, when packaging, just package the .sh and .jar, keeping their directories in the same position relative to the .m (so select the entire directories to package, not each individual .sh or .jar).

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Related Solutions

MATLAB: How to pass Perl variables when starting MATLAB with the -r option and a MATLAB function

MATLAB: External shell scripts in compiled GUI

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