My GNUplot 5.2 plot of:
$heights << EOD
dad 181
mom 170
son 100
daughter 60
EOD
set terminal png
plot '$heights' using 2:xtic(1) with boxes
As you can see "daughter" doesn't start at zero. I tried set yzeroaxis from the documentation but that didn't appear to have any impact.
BONUS: How do I remove that $heights using 2:xtic(1) line?
Fabiola's answer is correct but can be improved to show additional options
set yrange [0:*] # start at zero, find max from the data
set boxwidth 0.5 # use a fixed width for boxes
unset key # turn off all titles
set style fill solid # solid color boxes
plot '$heights' using 2:xtic(1) with boxes
You can use the command Xrange and Yrange to set the limits of axis:
set yrange [0:200]
set xrange [-1:4]
plot '$heights' using 2:xtic(1) with boxes notitle
The additional argument notitle removes the key.
Related
My gnuplot script plot a bar graph for 2D data either in monochrome or color format:
set term pngcairo size 800,600
set termoption noenhanced
set tics font "Helvetica,10"
#set xtics noenhanced
set ylabel "Fraction, %"
set xlabel "H-bond donor/aceptor, residue"
set yrange [0:1]
set ytics 0.1
set grid y
set key off
set boxwidth 0.9
set style fill solid 0.5
# TWO OPTIONS FOR BAR VISUALISATIONS!! NB: ADD HERE TRIGGER FROM COLOR_DATA TRIGGER
# 1 - use it with non-colored bars"
#plot "\$data" using 0:2:xtic(1) with boxes, "" using 0:2:2 with labels offset 0,1
# 2 - or use it with colored bars:
plot \$data using 0:2:3:xtic(1) with boxes lc rgb var, \
'' using 0:2:2 with labels offset 0,1
The problem when I have just one bar, one the graph it occupiers all the graph on X:
Would it be possible to set some minimum dimension for the bars to make the dimensions of a single bar similar for a situations with two bars, for instance:
My understanding is the following: if you have only one box:
maybe gnuplot tries to autoscale and the automatic boxwidth is small relative to the autorange (hence just a thin line).
if you set a certain boxwidth, autoscale with scale to the given boxwidth (hence the graph filled with the box).
you could set a fixed xrange, but then you are loosing the benefits of autoscale. Instead you can use set offets (check help offsets).
if you have more than 1 box autoscale will work.
Script:
### boxwidth with boxes style
reset session
$Data1 <<EOD
1 Abc
EOD
$Data2 <<EOD
1 Abc
2 Xyz
EOD
set style fill solid 0.3
set key out
set rmargin screen 0.7
set yrange[0:]
set ytics 0.5
set multiplot layout 4,1
plot $Data1 u 0:1:xtic(2) w boxes ti "No special settings"
set boxwidth 0.9
plot $Data1 u 0:1:xtic(2) w boxes ti "set boxwidth"
set offsets 1,1,0,0
plot $Data1 u 0:1:xtic(2) w boxes ti "set offsets"
set offsets 0,0,0,0
plot $Data2 u 0:1:xtic(2) w boxes ti "more than 1 box"
unset multiplot
### end of script
Result:
I'm trying to plot two different sets of data on the same graph using gnuplot. The first set must be plotted as boxerrorbars, and the second one as linespoints. But, when I run the code bellow on gnuplot I get the following error:
"/home/flav/salaak/src/www/plots/signature.ranking.1.EnergyPKG.gnu", line 20: warning: Skipping data file with no valid points
plot '//home/flav/salaak/src/www/plots/ranking.1.EnergyPKG.dat' using 0:2:3:xtic(1) with boxerrorbars fc rgb 'forest-green' title 'EnergyPKG [W]' axes x1y1, '//home/flav/salaak/src/www/plots/ranking.1.EnergyPKG.dsz.dat' u 1:2 w linespoints t 'Data Size bytes' axes x1y2
^
"/home/flav/salaak/src/www/plots/signature.ranking.1.EnergyPKG.gnu", line 20: all points y2 value undefined!
The code:
set terminal pngcairo enhanced font 'arial,10' fontscale 1.5 size 1024, 768
set output '/home/flav/salaak/src/www/plots/signature.ranking.1.EnergyPKG.png'
unset border
set grid
set style fill solid 0.25 noborder
set boxwidth 0.5 absolute
set title 'Ranking 1 '
set xlabel 'Query.Job'
set ylabel 'EnergyPKG [W]'
set style histogram errorbars gap 2 lw 1
set style data histograms
set xrange [-0.5:3]
set yrange [0:]
set key under autotitle nobox
set ytics nomirror
set y2tics nomirror
set y2range [0:]
set y2label 'Data Size [bytes]'
plot '//home/flav/salaak/src/www/plots/ranking.1.EnergyPKG.dat' using 0:2:3:xtic(1) with boxerrorbars fc rgb 'forest-green' title 'EnergyPKG [W]' axes x1y1, \
'//home/flav/salaak/src/www/plots/ranking.1.EnergyPKG.dsz.dat' u 1:2 w linespoints t 'Data Size bytes' axes x1y2
ranking.1.EnergyPKG.dat:
q22.2 23.0008220833333 0.237935519166793
q16.2 22.988090297619 1.18050606267611
q07.4 10.6937465361916 0
ranking.1.EnergyPKG.dsz.dat:
q22.2 23359824
q16.2 1987871
q07.4 38
I can't figure out where the problem really is.
The values in the first column aren't valid numerical values, you must use the zeroth column also when plotting the linespoints (as you already do for the boxes):
dir ='/home/flav/salaak/src/www/plots/'
plot dir.'ranking.1.EnergyPKG.dat' using 0:2:3:xtic(1) with boxerrorbars axes x1y1,\
dir.'ranking.1.EnergyPKG.dsz.dat' u 0:2 w lp axes x1y2
And, please restrict the script you post to a bare minimum, which however still shows the problem. All those ranges, labels, tic settings etc are superfluous and make it more difficult to identify the problem.
I'm trying to add some guiding lines over a pm3d map using Gnuplot.
Below is the code I use to plot pm3d map (my pm3d map).
set terminal post eps enhanced color solid "Helvetica" 16
set encoding iso_8859_1
set hidden3d
set pm3d map
set view map
unset surface
set size square
splot "map.ene" with image
set xlabel "RC1 ({\305})"
set ylabel "RC2 ({\305})"
set cblabel "{/Symbol D}G (kcal/mol)" offset 1,0,0
set xrange ["1":"11"]
set yrange ["5.5":"9.5"]
set cbrange ["-3.1":"0.0"]
set xtics 1
set ytics 1
set cbtics 1
set mxtics 2
set mytics 5
unset key
set palette defined (-3.1 "red", -2.5 "yellow", -1.5 "green", -0.5 "blue", 0 "white")
unset colorbox
set output "map.eps"
replot
map.ene is in the format below:
1.000 5.500 0.00000 i
Now I want to add a vertical line (x=5.5) over the pm3d figure. I searched old posts and found similar questions already been asked by others. Seems there are two possible solutions:
1) prepare a separate data file for the line (x.dat, 5.5,y,0.0) then use command below to plot.
splot "map.ene" with pm3d, "x.dat" using 1:2:(0.0) with points linecolor rgb "black"
2) use "multiplot" facility in Gnuplot.
I tried both, neither worked. I've been playing this for a while but sill not sure how I should modify my original pm3d code to add guiding lines.
you can draw lines in gnuplot:
set arrow from first 5.5, graph 0 to first 5.5, graph 1 nohead
type help coordinates to better tune the above command.
I could not find a solution to the following issue I am facing. All SO questions on multi-axis talk about line plots, but I am looking for histograms.
The y-range for the bars are different, so one set of bars are not really seen because of the scale. Here is the data:
Metric A B
M1 0.613416301 0.543734744
M2 0.000195961 0.000100190
Here is the MWE:
reset
set term postscript eps size 5.5,4.5 enhanced color font 'Arial-Bold' 25
set out 'histplot.eps'
set key right
set style histogram cluster gap 2
set style data histograms
set style fill pattern 1.00 border
set y2range [0.0001:0.0002]
plot 'histplot.dat' using 2 ti col, '' u 3:xticlabels(1) ti col
quit
This is the sample output (one set of bars over M2 is not seen):
What I prefer is to have a second y-axis (to the right side of the plot) with a range appropriate to the second row of my data file. Is this possible? Any help is greatly appreciated.
Normally you can plot severyl histograms beneath each other using newhistogram. However, it seems like this is buggy when using patterns as fillstyle:
reset
set style histogram cluster gap 1
set style data histograms
set style fill pattern 1.00 border
set yrange [0:*]
set ytics nomirror
set y2range [0:*]
set y2tics
set key right autotitle columnheader
plot 'histplot.dat' u 2 every ::::0, '' u 3:xtic(1) every ::::0,\
newhistogram lt 1 at 1,\
'histplot.dat' u 2 every ::1::1 axes x1y2, '' u 3:xtic(1) every ::1::1 axes x1y2
Alternatively you can use multiplot and plot the two histograms directly beneath each other:
reset
set style histogram cluster gap 1
set style data histograms
set style fill pattern 1.00 border
set yrange [0:*]
set ytics nomirror
set multiplot layout 1,2
set rmargin at screen 0.5
set lmargin 9
unset key
plot 'histplot.dat' using 2 every ::::0 ti col, '' u 3:xticlabels(1) every ::::0 ti col
set rmargin 9
set lmargin at screen 0.5
unset ytics
set y2range [0:*]
set y2tics
set key right
plot '' using 2 every ::1::1 axes x1y2 ti col, '' u 3:xtic(1) every ::1::1 axes x1y2 ti col
unset multiplot
If you don't want the separating black line, you can use set border 7 for the first and set border 13 for the second plot.
I create overlapping graphs in Gnuplot, because I mix normal and parametric plots (and also pm3d maps and parametric surfaces). This works fine mostly, except for one thing: If both plots have a title, the legends usually overlaps. A typical example looks like this:
#legends.gp
set term pngcairo enhanced color linewidth 1.5 dashed dashlength 1.4 rounded
set output "legends.png"
set title "legends test"
set multiplot
# make a box around the legend
set key box
set border 15 lw 1
# fix the margins, this is important to ensure alignment of the plots.
set lmargin at screen 0.15
set rmargin at screen 0.98
set tmargin at screen 0.90
set bmargin at screen 0.15
set xlabel "x"
set ylabel "sin(x)"
set xrange[0:2*pi]
set yrange[-1:1]
set grid x y
# add single tic at 0.62
set xtics add ("x0" 0.62)
# main plot command
plot sin(x) title "sinus"
# turn everything off
set format x "" #numbers off
set format y ""
set xlabel "" #label off
set ylabel ""
set border 0 #border off
unset xtics #tics off
unset ytics
unset grid #grid off
unset title #title off
#plot vertical line at 0.62
set parametric
plot 0.62,t ls 2 lw 2 title "parametric Line"
unset parametric
unset multiplot
My question is now, is there a simple, mostly automatic way to create a single legend for multiple plots?
P.S. Sorry, I ended up making the example file more complex than it had to be by showing some more features, that are hopefully helpful for future readers.
Here's a VERY dirty hack that works for me. change:
plot sin(x) title "sinus"
to:
plot sin(x) title "sinus",NaN w l ls 2 lt 2 title "parametric line"
Then plot the parametric line without a title (e.g. notitle instead of title "parametric line").
This works because gnuplot ignores NaN's when plotting -- Essentially the second thing we're plotting above just adds one element to the legend. I specify the linetype, etc to be the same as your parametric plot linestyle/type so that it shows up properly in the legend. To my knowledge, this is the only way to do something like this...
Of course, you could just edit it so that both are plotted parametrically and forgo the entire multiplot buisness...
set xrange [0:2*pi]
set yrange [-1:1]
set parametric
set trange [-10:10]
plot t,sin(t) title "Hello", 0.62,t title "World"
that's probably the "cleaner" solution...(but less fun working with gnuplot "magic")
From the gnuplot info manual:
To draw a vertical line from the bottom to the top of the graph at
x=3, use:
set arrow from 3, graph 0 to 3, graph 1 nohead