mra_bu at yahoo.com
Thu Jul 19 14:06:55 CEST 2012
Dear Gromacs Users,
I have several questions about g_clustsize, Please help me.
I have several micelles in my system and I want to calculate: the number of monomers in micelles and cluster number and monomer number during the time of simulation, I used from this command as is follows:
g_clustsize -f clustered.xtc -s c.tpr -tu us -mol -cut 0.7 -nc nclust.xvg -ac avclust.xvg -mc maxclust.xvg
I have 150 monomer initially in my system. I selected -cut from rdf.xvg for tail-tail that 0.7 was the first minimum in this graph.
1- the nclust.xvg file is as follows:
@ title "Number of clusters"
@ xaxis label "Time (us)"
@ yaxis label "N"
. . . . . .. . .. . .. . .. ... .
. . ... . .. .. .. . . .. . .. ..
. . ... . . . . ... .............
whereas in the first step of simulation there is no cluster and it should be 0!!!
2- when I choose -tu (ps, ms, us , ... ) there is no difference among them about time either file .xvg and graphs!!!why and where is problem?
3- how should I find the number of monomers from first to end of simulation that it should be 150 in the first step.
May I ask you to help me, Please?
Thank you in advance.
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