Re: [AMBER] Extract the last 90ns trajectory

From: Daniel Roe <daniel.r.roe.gmail.com>
Date: Wed, 23 Oct 2019 13:12:50 -0400

Note that in CPPTRAJ version >= 4.4.1 the 'trajin' command will
accept a negative number as the <start> argument, which means start
<start> frames before stop. So to make Carlos's example more general
you could do

trajin myfile -90000 last


-Dan

On Wed, Oct 23, 2019 at 6:11 AM Carlos Simmerling
<carlos.simmerling.gmail.com> wrote:
>
> You can specify the range of frames to read immediately after the trajin
> command. If your file has 10000 frames (depending on ntwx) you would use
> trajin myfile 1001 10000
>
>
>
> On Wed, Oct 23, 2019, 5:29 AM Airy Sanjeev <airy.sanjeev01.gmail.com> wrote:
>
> > Dear Amber User,
> > I have a single trajectory file of 100 ns and I want to run the secondary
> > structure analysis for the last 90 ns trajectory by throwing the 1st 10 ns
> > trajectory. Please suggest me in this regard.
> >
> > Thank you in advance
> >
> > --
> > with best regards,
> > Airy Sanjeev, PhD
> > Post Doctoral Fellow
> > Indian Institute of Technology Guwahati, Guwahati
> > Assam-781039, India
> > _______________________________________________
> > AMBER mailing list
> > AMBER.ambermd.org
> > http://lists.ambermd.org/mailman/listinfo/amber
> >
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Received on Wed Oct 23 2019 - 10:30:02 PDT
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