[gmx-users] secondary structure index

[X.Periole]

On Tue, 7 Feb 2006 15:06:51 -0700
  Anthony Cruz <acb15885 at uprm.edu> wrote:
> Hi:
> I want to make an index were I one group correspond to 
>alpha helix other to 
> beta sheet and other, essentially 3 groups. This is what 
>I have been trying:
> (A)
> r 3-11 r 15-22
> 
>Found 81 atoms with res.nr. in range 3-11
> 
> Syntax error: "r 15-22"
> (B)
> 
> r 3-11 & r 15-22
> 
>Found 81 atoms with res.nr. in range 3-11
>Found 86 atoms with res.nr. in range 15-22
> Merged two groups with AND: 81 86 -> 0
> Group is empty
> (C)
> r 3-11 14-25
> 
>Found 81 atoms with res.nr. in range 3-11
> 
> Syntax error: "14-25"
> 
> 
> How I can do it????
> 
what about r 3-11 | r 14-25

or r 3-11
then r 14-25
then the two groups with a | in between ??

Man, try harder ...

XAvier