<P>
<BR>
Hi all, <BR>
I am trying to make centre of the bilayer so I used following command line<BR>
trjconv -f 20nspopc.xtc -centre rect -o 20nstrjout.xtc -n water.ndx based on http://www.gromacs.org/pipermail/gmx-users/2003-June/005995.html<BR>
here I selected 3 (solution) again 3 (solution) for output of the selecting group<BR>
this command ran fine<BR>
when I feed 20nstrjout.xtc to g_density <BR>
g_density -f 20nstrjout.xtc -s em.tpr -d z -o waterden -n water.ndx<BR>
Group 0 ( System) has 14036 elements<BR>
Group 1 ( POPC) has 6656 elements<BR>
Group 2 ( SOL) has 7380 elements<BR>
Group 3 ( SOL) has 7380 elements<BR>
Select a group: 3<BR>
Selected 3: 'SOL'<BR>
Reading frame 0 time 0.000 Segmentation fault<BR>
<BR>
where is the mistake happening? <BR>
<BR>
Could anyone tell me<BR>
<BR>
Thanks in advance
</P>
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