[gmx-users] changing g_rdf

[Kay Gottschalk]

Hi Guys amd Gals,

I'd like to do a minor  modification on g_rdf: if I provide an index 
file consisting just of two groups, I'd like it to take automatically 
the first group as reference group without asking further questions. I 
have the feeling that this should be rather easy - but stupidly enough 
my programing skils a comparable to those of a drosophila. Therefore, 
I'd be more than grateful for advise on that.
Thanks,
Kay.