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Top Forums Shell Programming and Scripting Finding consecutive maxima and recording them Post 302603159 by pau on Wednesday 29th of February 2012 08:27:35 AM
Old 02-29-2012
Finding consecutive maxima and recording them

Hello,

I have a file with two columns (I uploaded it because it is some 500K):

File-Upload.net - data.dat

If you plot the data with, say, gnuplot,

Code:
plot 'data.dat' u 1:2 w l

you will see that there are jumps. This is actually an orbit and a maximum corresponds to an apocenter and a minimum to a pericenter.

I would like to calculate two things:

(1) The initial period: I.e. the separation in the X axis between the very first maximum and the second one.

(2) The instantaneous period: For a value of X what is the difference between the immediately previous maximum and the following one

Is it possible to do this without having to use R or so?

thanks
 

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g_wheel(1)					 GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c					g_wheel(1)

NAME
g_wheel - plots helical wheels VERSION 4.5.4-dev-20110404-bc5695c SYNOPSIS
g_wheel -f nnnice.dat -o plot.eps -[no]h -[no]version -nice int -r0 int -rot0 real -T string -[no]nn DESCRIPTION
g_wheel plots a helical wheel representation of your sequence. The input sequence is in the .dat file where the first line contains the number of residues and each consecutive line contains a residue name. FILES
-f nnnice.dat Input Generic data file -o plot.eps Output Encapsulated PostScript (tm) file OTHER OPTIONS
-[no]hno Print help info and quit -[no]versionno Print version info and quit -nice int 19 Set the nicelevel -r0 int 1 The first residue number in the sequence -rot0 real 0 Rotate around an angle initially (90 degrees makes sense) -T string Plot a title in the center of the wheel (must be shorter than 10 characters, or it will overwrite the wheel) -[no]nnyes Toggle numbers SEE ALSO
gromacs(7) More information about GROMACS is available at <http://www.gromacs.org/>. Mon 4 Apr 2011 g_wheel(1)
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