No command for barplots with error, except using GUI?

["Sung, Myong-Hee (NCI)" <sungm@mail.nih.gov>]

Hi,

I have spent incredibly many frustrating hours trying to figure this out.  

I'd like to generate barplots with error from a script.  But I was surprised
to
find that there is no command to do this from command  line.  For my
purpose,
I want to call a function rather than use GUI.  So I tried to copy the GUI
commands
from history log to my script but that doesn't work so well either.

Is there an easy solution to this?  
I'd really appreciate any help.
(Splus 2000 on Windows98)

Myong-Hee Sung