Re: [Gnuplot-info] problem with awk in plot

[Thomas S. <t.s...@fz...>]

without knowing what your data look like, one remark:

"<awk 'NR<2 {print $3}' plot1.dat" ls 1 lt rgb "#FF0000"

plots a data point, while

5000 ls 1 lt rgb "#FF0000"

plots a (constant) function.


chessat2002 wrote:
> 
> hi guys!
> 
> i'm currently working with histograms in gnuplot. here is a snipet of my
> plotting script:
> 
> # plot histogram, captions and red line
> plot 'plot1.dat' using 3:xtic(1) ls 1 lt rgb "#0000FF",\
>       '' using 2:($3+500):($3) with labels font ",8",\
>       "<awk 'NR<2 {print $3}' plot1.dat" ls 1 lt rgb "#FF0000"
> 
> in this script i plot the bars (1st line), captions over the bars (2nd
> line) and in the 3rd line, i would like to print a solid line at the
> height of the first bar in the plot. the awk-command extracts a singe
> number from my file. unfortunately it does not print a single line here,
> it prints a second bar at the first x position. if i replace the
> awk-command with a constant number (see the following snipet), then it
> works.
> 
> # plot histogram, captions and red line
> plot 'plot1.dat' using 3:xtic(1) ls 1 lt rgb "#0000FF",\
>       '' using 2:($3+500):($3) with labels font ",8",\
>       5000 ls 1 lt rgb "#FF0000"
> 
> 
> Thanks for your help and your time!
> 
> Alex'
> 
> 

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