The flow of execution for plotting XY-type data in relax is:
* The user function definition in the [http://www.nmr-relax.com/api/3.3/user_functions.grace-module.html user_functions.grace module ] (in the future the user_functions.plotting module).* The [http://www.nmr-relax.com/api/3.3/pipe_control.plotting-module.html pipe_control.plotting.write_xy() function].* The [http://www.nmr-relax.com/api/3.3/lib.plotting-module.html lib.plotting ] functions write_xy_header() and write_xy_data().
== Package: user_functions ==