[gmx-users] RE: g_h2order

[Junfang.Zhang at csiro.au]

Dear Gromacs users,


When I use 

g_h2order -f traj.xtc -n index.ndx -s XXX.tpr -d Z -o order.xvg

to analyze the orientation of water molecules with respect to the normal
in Z direction, I found there are 5 columns in order.xvg. They are

xaxis  label "box (nm)"

yaxis  label "mu_x, mu_y, mu_z (D), cosine with normal"


Can you please let me know what mu_x, mu_y, mu_z (D) represent? 


Kind regards,

J. Zhang