Re: [Gnuplot-info] use of different Colors in histogram

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

you don't give any x-values, so the line numbers in the data file are
used as x-values.

in your 2nd plot command there are 2 data sets, and each one starts
a new line numbering.

just modify the 2nd part of the plot command:
plot ... ,\
... using ($0+1):2:xticlabel(1) ...


nicolaslac wrote:
> 
> Hello,
> 
> I would like to create histograms using one color for the n firsts columns
> and
> other one for the remaining columns...
> 
> Variable color seems to be a hint, but seems to be too complicated for my
> simple
> need.
> 
> I read
> http://old.nabble.com/Plot-boxes-with-color-determined-by-column-data--td27483709.html#a27488996
> http://old.nabble.com/variable-color-in-histogram-tp27852750p27852750.html
> 
> Here are my final investigation...
> 
> 8<--- sample.csv
> toto;1
> tutu;2
> lolo;6
> 
> 8<--- gnuplot session
> set key off
> set datafile separator ";"
> set boxwidth 0.8
> set style fill solid 0.4 border
> set grid ytics
> set yrange [0:8]
> plot '<sort -n -t\; -nk 2 -r sample.csv' using  2:xticlabel(1) with boxes
> lt rgb "dark-blue"
> 
> plot '<sort -n -t\; -nk 2 -r sample.csv | head -n 1' using 2:xticlabel(1)
> with boxes lt rgb "dark-blue",\
>      '<sort -n -t\; -nk 2 -r sample.csv | tail -n+2' using 2:xticlabel(1)
> with boxes lt rgb "red" 
> 8<---
> 
> the last command is not satisfying... values on the x axes are
> overlapping...
> 

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