This is probably close to what you want: set palette model RGB defined ( 0 ‘red’, 1 ‘green’ ) plot[0:5][0:6] “file.dat” u 1:2:( $3 == 0 ? 0 : 1 ) with points palette You could go one step further and remove the “noise”: unset key unset colorbox plot[0:5][0:6] “file.dat” u 1:2:( $3 == 0 … Read more
Simple bar graph: set boxwidth 0.5 set style fill solid plot “data.dat” using 1:3:xtic(2) with boxes data.dat: 0 label 100 1 label2 450 2 “bar label” 75 If you want to style your bars differently, you can do something like: set style line 1 lc rgb “red” set style line 2 lc rgb “blue” set … Read more
Getting the margins right with multiplot is a bit tedious, especially when using set pm3d map, which has quite large margins. Since version 5.0 Since 5.0 version,multiplot has the options margins and spacing. margins takes four numbers set multiplot margins <left>,<right>,<bottom>,<top>, which give the fixed overall margins around the multiplot layout. spacing takes two number … Read more
I came across this while searching for something else regarding gnuplot. Even though it’s an old question, I thought I’d contribute some sample code. I use this for a program of mine, and I think it does a pretty tidy job. AFAIK, this PIPEing only works on Unix systems (see the edit below for Windows … Read more
In case somebody wants to use a lookup table as @Ethan suggested, here are the 111 predefined gnuplot colors in arrays (taken from the gnuplot manual). array ColorNames[111] = \ [‘white’, ‘black’, ‘dark-grey’, ‘red’, ‘web-green’, ‘web-blue’, ‘dark-magenta’, ‘dark-cyan’, ‘dark-orange’, ‘dark-yellow’, \ ‘royalblue’, ‘goldenrod’, ‘dark-spring-green’, ‘purple’, ‘steelblue’, ‘dark-red’, ‘dark-chartreuse’, ‘orchid’, ‘aquamarine’, ‘brown’, \ ‘yellow’, ‘turquoise’, ‘grey0’, … Read more
There sure is (in gnuplot 4.4+): plot for [i=1:1000] ‘data’.i.’.txt’ using 1:2 title ‘Flow ‘.i The variable i can be interpreted as a variable or a string, so you could do something like plot for [i=1:1000] ‘data’.i.’.txt’ using 1:($2+i) title ‘Flow ‘.i if you want to have lines offset from each other. Type help iteration … Read more
You cannot combine the data from two different files in a single using statement. You must combine the two files with an external tool. The easiest way is to use paste: plot ‘< paste a.dat b.dat’ using 1:($2/$4) with linespoints For a platform-independent solution you could use e.g. the following python script, which in this … Read more
It is possible to read a file into a datablock, provided you know the input data format. For example, you have a file MyFile1 with numbers in 3 columns which you want to read into datablock MyBlock1, then plot in 3 ways: set table $MyBlock1 plot “MyFile1” using 1:2:3 with table unset table plot $MyBlock1 … Read more
yes, and its quick and simple though very hidden: binwidth=5 bin(x,width)=width*floor(x/width) plot ‘datafile’ using (bin($1,binwidth)):(1.0) smooth freq with boxes check out help smooth freq to see why the above makes a histogram to deal with ranges just set the xrange variable.
Until version 4.6 The dash type of a linestyle is given by the linetype, which does also select the line color unless you explicitely set an other one with linecolor. However, the support for dashed lines depends on the selected terminal: Some terminals don’t support dashed lines, like png (uses libgd) Other terminals, like pngcairo, … Read more