[gmx-users] g_bundle problem

Milan Melichercik melichercik at nh.usbe.cas.cz
Fri Mar 19 02:48:49 CET 2010

On Friday 19 March 2010 02:36:49 Stefan Hoorman wrote:
> I have tried using g_bundle in order to analyse helix axes in my
> transmembran helices. I created two groups in my ndx file that included the
> alpha carbons of the first half of my helix and a second group for the
>  alpha carbons for the second half. When I try using g_bundle the following
>  error comes up:
> "Fatal error:
> The size of one of your index groups is not a multiple of n"
> What am I doing wrong?

g_bundle analyzes bundles of axes - and therefore number of atoms each group 
have to be divisible by number of axes (entered by -na). And I suppose, you 
are interested in analyzing only one axis, don't you?


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