If your system has idl coyote graph error bars, this blog post might help.
Approved: Fortect
QUESTION: I found IDL routines and ERRPLOT plotter,but they only seem to draw the error nuggets in the Y direction. I want stripes therein both X and Y directions. How can I do this in IDL?
ANSWER: You probably have something to do with happiness here, how?IDL is spreading. But others ran awayProblems too. Check out PlotErround routines OplotErrat