Dear all,

I wish to calculate the density profile of a lipid bilayer i.e the electron 
density and this is how I am using the g_density command:

g_density -f final.trr -s final.tpr -ei electrons.dat -o density.xvg -ed -symm

where electrons.dat contains # of electrons information for each and every 
atomtype defined in the system e.g.
C2A = 6
NTM = 7
OA   = 8 etc....

However it reports electron density for 50bins (setup by -sl) which ranges from 
0 to 50. However I want it to vary from, -30 to +30. 

Another point is, I want the density profile separately for P, N, acyl, water 
etc. Should I define a separate electrons.dat for this purpose? 

Kindly suggest me as to how should I proceed,
eagerly waiting for your reply,
Priyanka S...

       
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