I'll assume you're on a UNIX system and Perl and gnuplot are available.
The following (cheap and pretty dirty) Perl script will extract the two columns you're interested in:
(Sorry... the forum software does awful things to the indentation of the script and I'm not sure how to prevent that.)
This would be run using:
and produce
A simple gnuplot command file to plot two curves might be:
set terminal postscript landscape;
plot "data.file.extracted_data" with lines, "data2.file.extracted_data" with lines;
If these were saved in a file named "gnuplot.cmds", you would generate the plot using:
If you need to plot more than two curves, add another datafile name containing extracted data file to the end of the "plot" command and rerun the above gnuplot command. You could also add extra commands to control the X and Y axes, etc. (above the line containing the "plot" command).
Hope this helps.
--
Rick
Last edited by Yogesh Sawant; 04-04-2009 at 07:11 AM..
Reason: added code tags
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LEARN ABOUT BSD
clospl
PLOT(3F)PLOT(3F)NAME
plot: openpl et al. - f77 library interface to plot(3X) libraries.
SYNOPSIS
subroutine openpl()
subroutine erase()
subroutine label(str)
character str*(*)
subroutine line(ix1, iy1, ix2, iy2)
subroutine box(ix1, iy1, ix2, iy2)
Draw a rectangle and leave the cursor at ( ix2,iy2).
subroutine circle(ix, iy, ir)
subroutine arc(ix, iy, ix0, iy0, ix1, iy1)
subroutine move(ix, iy)
subroutine cont(ix, iy)
subroutine point(ix, iy)
subroutine linemd(str)
character str*(*)
subroutine space(ix0, iy0, ix1, iy1)
subroutine clospl()
DESCRIPTION
These are interface subroutines, in the library -lf77plot, allowing f77 users to call the plot(3X) graphics routines which generate graphic
output in a relatively device-independent manner. The f77 subroutine names are the same as the C function names except that linemod and
closepl have been shortened to linemd and clospl . See plot(5) and plot(3X) for a description of their effect.
Only the first 255 character in string arguments to label and linemd are used.
This library must be specified in the f77(1) command before the device specific graphics library; for example, to compile and load a FOR-
TRAN program in prog.f to run on a Tektronix 4014 terminal:
f77 prog.f -lf77plot -l4014
See plot(3X) for a complete list of device specific plotting libraries.
SEE ALSO plot(5), plot(1G), plot(3X), graph(1G)4.3 Berkeley Distribution April 30, 1986 PLOT(3F)