[gmx-users] questions about g_hbond

[Dechang Li]

Dear all, 

    I used g_hbond to count the number of hydrogen bonds
between two molecules. The result was here:

# g_hbond_mpi is part of G R O M A C S:
#
# GROningen MAchine for Chemical Simulation
#
@    title "Hydrogen Bonds"
@    xaxis  label "Time"
@    yaxis  label "Number"
@TYPE xy
@ view 0.15, 0.15, 0.75, 0.85
@ legend on
@ legend box on
@ legend loctype view
@ legend 0.78, 0.8
@ legend length 2
@ s0 legend "Hydrogen bonds"
@ s1 legend "Pairs within 0.35 nm"
         0          15           8
         2          12          11
         4          12          14
         6          16           8
         8          14          15
        10          15           9
        12          16           6
        14          12          13
        16          13           5
        18          11          11


	WHY the number in third column sometimes smaller than
the number in second column?


Best regards,



========================================= 
Dechang Li, PhD Candidate
Department of Engineering Mechanics
Tsinghua University
Beijing 100084
PR China 

Tel:   +86-10-62773779(O) 
Email: lidc02 at mails.tsinghua.edu.cn
=========================================