Re: [gmx-users] Calculation of RMSF

2019-11-29 Thread Nicolas Cheron
Thank you for your answer. As Mala said, since it is called the reference structure, I was thinking that the RMSF was computed with respect to this structure and not the average structure. Is there any way with Gromacs to compute RMSF exactly with respect to a given structure? If I want to study

Re: [gmx-users] Calculation of RMSF

2019-11-29 Thread Justin Lemkul
On 11/29/19 5:53 AM, Mala L Radhakrishnan wrote: Hi, I am confused a bit by this answer -- isn't the file specified by -s used for defining the rmsf (this is what is called the "reference" structure in the documentation, and I have found that my results do vary using a different "-s"

Re: [gmx-users] Calculation of RMSF

2019-11-29 Thread Mala L Radhakrishnan
Hi, I am confused a bit by this answer -- isn't the file specified by -s used for defining the rmsf (this is what is called the "reference" structure in the documentation, and I have found that my results do vary using a different "-s" file)...? Or is that just used for fitting and then the

Re: [gmx-users] Calculation of RMSF

2019-11-28 Thread Justin Lemkul
On 11/28/19 12:09 PM, Nicolas Cheron wrote: Dear all, I am puzzled by the way RMSF are computed. For a given trajectory (nothing fancy, just a regular protein): (1) I have computed RMSF 5 times for two frames i.e. Frame 1/2, 3/4, 5/6, 7/8 and 9/10, each time using the same pdb reference (if