[gmx-users] g_bundle issue

2010-05-24 Thread Anirban Ghosh
Hi ALL,

I tried to calculate the helix tilt of a single helix (TM5) among 7 helices
using g_bundle. In the index file I defined the two groups (top  bottom) as
the C-alpha of the first 5 and last 5 residues of TM5 respectively. But in
the bun_tilt.xvg file I am getting the values as:

---
# This file was created Thu May 20 15:29:50 2010
# by the following command:
# g_bundle -f prot.xtc -s prot.tpr -n TM5_top_bot.ndx -na 1
#
# g_bundle is part of G R O M A C S:
#
# GRowing Old MAkes el Chrono Sweat
#
@title Axis tilts
@xaxis  label Time (ps)
@yaxis  label (degrees)
@TYPE xy
  0  0
  2 0.0197823
  4  0
  6 0.0197823
  8  0
 10  0
 12 0.0197823
 14  0
 16 0.0197823
 18  0
 20 0.0279765
 22  0
 24  0
 26 0.0197823
 28  0
 30  0
 32  0
 34  0
 36  0
 38 0.0197823

And when plotted it gives a blank plot. Why it is coming like this? Am I
doing anything wrong? Any suggestion is welcome.
The contents of the index file is:

[ top ]
1844 1850 1858 1866 1878 1896 1904 1913 1922 1940 1948 1956 1965 1974 1983
1991
[ bottom ]
2000 2008 2014 2024 2032 2041 2050 2067 2079 2092 2101 2109 2118 2124 2132
2138 2146


Regards,

Anirban
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Re: [gmx-users] g_bundle issue

2010-05-24 Thread Thomas Piggot
Have you tried using the -z option to calculate the angle with respect 
to to the z axis? I vaguely remember having an issue like this a few 
years ago and this fixed the problem, sorry I can't be more specific.


Cheers

Tom

Anirban Ghosh wrote:


Hi ALL,

I tried to calculate the helix tilt of a single helix (TM5) among 7 
helices using g_bundle. In the index file I defined the two groups (top 
 bottom) as the C-alpha of the first 5 and last 5 residues of TM5 
respectively. But in the bun_tilt.xvg file I am getting the values as:


---
# This file was created Thu May 20 15:29:50 2010
# by the following command:
# g_bundle -f prot.xtc -s prot.tpr -n TM5_top_bot.ndx -na 1
#
# g_bundle is part of G R O M A C S:
#
# GRowing Old MAkes el Chrono Sweat
#
@title Axis tilts
@xaxis  label Time (ps)
@yaxis  label (degrees)
@TYPE xy
  0  0
  2 0.0197823
  4  0
  6 0.0197823
  8  0
 10  0
 12 0.0197823
 14  0
 16 0.0197823
 18  0
 20 0.0279765
 22  0
 24  0
 26 0.0197823
 28  0
 30  0
 32  0
 34  0
 36  0
 38 0.0197823

And when plotted it gives a blank plot. Why it is coming like this? Am I 
doing anything wrong? Any suggestion is welcome.

The contents of the index file is:

[ top ]
1844 1850 1858 1866 1878 1896 1904 1913 1922 1940 1948 1956 1965 1974 1983
1991
[ bottom ]
2000 2008 2014 2024 2032 2041 2050 2067 2079 2092 2101 2109 2118 2124 2132
2138 2146


Regards,

Anirban



--
Dr Thomas Piggot
University of Southampton, UK.
--
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Please search the archive at http://www.gromacs.org/search before posting!
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[gmx-users] g_bundle issue

2010-05-20 Thread Anirban Ghosh
Hi ALL,

I tried to calculate the helix tilt of a single helix (TM5) among 7 helices
using g_bundle. In the index file I defined the two groups (top  bottom) as
the C-alpha of the first 5 and last 5 residues of TM5 respectively. But in
the bun_tilt.xvg file I am getting the values as:

---
# This file was created Thu May 20 15:29:50 2010
# by the following command:
# g_bundle -f prot.xtc -s prot.tpr -n TM5_top_bot.ndx -na 1
#
# g_bundle is part of G R O M A C S:
#
# GRowing Old MAkes el Chrono Sweat
#
@title Axis tilts
@xaxis  label Time (ps)
@yaxis  label (degrees)
@TYPE xy
  0  0
  2 0.0197823
  4  0
  6 0.0197823
  8  0
 10  0
 12 0.0197823
 14  0
 16 0.0197823
 18  0
 20 0.0279765
 22  0
 24  0
 26 0.0197823
 28  0
 30  0
 32  0
 34  0
 36  0
 38 0.0197823

And when plotted it gives a blank plot. Why it is coming like this? Am I
doing anything wrong? Any suggestion is welcome.
The contents of the index file is:

[ top ]
1844 1850 1858 1866 1878 1896 1904 1913 1922 1940 1948 1956 1965 1974 1983
1991
[ bottom ]
2000 2008 2014 2024 2032 2041 2050 2067 2079 2092 2101 2109 2118 2124 2132
2138 2146


Regards,

Anirban
-- 
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/mailing_lists/users.php

[gmx-users] g_bundle issue

2010-05-20 Thread Anirban Ghosh
Hi ALL,

I tried to calculate the helix tilt of a single helix (TM5) among 7 helices
using g_bundle. In the index file I defined the two groups (top  bottom) as
the C-alpha of the first 5 and last 5 residues of TM5 respectively. But in
the bun_tilt.xvg file I am getting the values as:

---
# This file was created Thu May 20 15:29:50 2010
# by the following command:
# g_bundle -f prot.xtc -s prot.tpr -n TM5_top_bot.ndx -na 1
#
# g_bundle is part of G R O M A C S:
#
# GRowing Old MAkes el Chrono Sweat
#
@title Axis tilts
@xaxis  label Time (ps)
@yaxis  label (degrees)
@TYPE xy
  0  0
  2 0.0197823
  4  0
  6 0.0197823
  8  0
 10  0
 12 0.0197823
 14  0
 16 0.0197823
 18  0
 20 0.0279765
 22  0
 24  0
 26 0.0197823
 28  0
 30  0
 32  0
 34  0
 36  0
 38 0.0197823

And when plotted it gives a blank plot. Why it is coming like this? Am I
doing anything wrong? Any suggestion is welcome.
The contents of the index file is:

[ top ]
1844 1850 1858 1866 1878 1896 1904 1913 1922 1940 1948 1956 1965 1974 1983
1991
[ bottom ]
2000 2008 2014 2024 2032 2041 2050 2067 2079 2092 2101 2109 2118 2124 2132
2138 2146


Regards,

Anirban
-- 
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/mailing_lists/users.php