@brief Opens up a gnuplot session, ready to receive commands.
@return Newly created gnuplot control structure.
This opens up a new gnuplot session, ready for input. The struct
controlling a gnuplot session should remain opaque and only be
accessed through the provided functions.
@brief Opens up a gnuplot session, ready to receive commands. @return Newly created gnuplot control structure.
This opens up a new gnuplot session, ready for input. The struct controlling a gnuplot session should remain opaque and only be accessed through the provided functions.
The session must be closed using finish().