GNUPLOT: contour lines


 
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Old 03-18-2011
GNUPLOT: contour lines

I have a data file with 3 columns.

I want to plot a "map view" plot with column 1 and column 2 as x and y axis respectively.

The third column is 0 or one.

I want a plot that draws a line separating the region with 3rd column value "0" from 3rd column value "1".

I would really appreciate some help.

Thanks,
-G
 
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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)