Re: [gmx-users] How to use the index.ndx when running rms?

2017-08-14 Thread ZHANG Cheng
Dear All, After a few tests, I finally got it. Actually, the command line below does NOT generate a new set of group. echo r 1-442 q|gmx make_ndx -f md_0_1.tpr -o index.ndx Instead, it outputs ALL the 18 groups, each group contains its relevant atom numbers. After reading

Re: [gmx-users] How to use the index.ndx when running rms?

2017-08-14 Thread Justin Lemkul
On 8/14/17 11:09 AM, ZHANG Cheng wrote: Dear Gromacs, After running echo r 1-442 q|gmx make_ndx -f md_0_1.tpr -o index.ndx I got a index.ndx file. Then I run echo 19 19|gmx rms -s md_0_1.tpr -f md_0_1.xtc -o rmsd.xvg -tu ns But still only 18 options could be recognised. The index.ndx file is

[gmx-users] How to use the index.ndx when running rms?

2017-08-14 Thread ZHANG Cheng
Dear Gromacs, After running echo r 1-442 q|gmx make_ndx -f md_0_1.tpr -o index.ndx I got a index.ndx file. Then I run echo 19 19|gmx rms -s md_0_1.tpr -f md_0_1.xtc -o rmsd.xvg -tu ns But still only 18 options could be recognised. The index.ndx file is already in the same folder. So how to