Fortran How to Call Gnuplot from Fortran to Plot Data Points?

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To plot data points from a Fortran program using gnuplot, the "system" subroutine can be utilized. By calling "CALL SYSTEM(gnuplot)" within the Fortran code, users can execute gnuplot commands directly from the Fortran environment. This approach allows for seamless integration of Fortran output with gnuplot for visualization. The discussion highlights the compatibility of this method with Fortran95 and the gfortran compiler, specifically in a Windows environment while accessing Unix machines remotely.
Abraham
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hello. I have a fortran code that has data points as output.

How do I get fortran to plot these data points using gnuplot?

Is there a way to call the external program from within fortran?

I am using fortran95, gfortran compiler. I'm on a windows machine, but
I'm connected remotely to the Unix machines in the lab.

Thanks,

Abraham
 
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Hi Abraham,

Try using the "system" subroutine.

Code: 
CALL SYSTEM(gnuplot )

Whatever you put inside the parentheses gets passed to the command line (or terminal depending on your os.)
 

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