How do you plot bar charts in gnuplot with text labels?
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 style fill solid
set boxwidth 0.5
plot "data.dat" every ::0::0 using 1:3:xtic(2) with boxes ls 1, \
"data.dat" every ::1::2 using 1:3:xtic(2) with boxes ls 2
If you want to do multiple bars for each entry:
data.dat:
0 5
0.5 6
1.5 3
2 7
3 8
3.5 1
gnuplot:
set xtics ("label" 0.25, "label2" 1.75, "bar label" 3.25,)
set boxwidth 0.5
set style fill solid
plot 'data.dat' every 2 using 1:2 with boxes ls 1,\
'data.dat' every 2::1 using 1:2 with boxes ls 2
If you want to be tricky and use some neat gnuplot tricks:
Gnuplot has psuedo-columns that can be used as the index to color:
plot 'data.dat' using 1:2:0 with boxes lc variable
Further you can use a function to pick the colors you want:
mycolor(x) = ((x*11244898) + 2851770)
plot 'data.dat' using 1:2:(mycolor($0)) with boxes lc rgb variable
Note: you will have to add a couple other basic commands to get the same effect as the sample images.
plot "data.dat" using 2: xtic(1) with histogram
Here data.dat contains data of the form
title 1
title2 3
"long title" 5
I would just like to expand upon the top answer, which uses GNUPlot to create a bar graph, for absolute beginners because I read the answer and was still confused from the deluge of syntax.
We begin by writing a text file of GNUplot commands. Lets call it commands.txt:
set term png
set output "graph.png"
set boxwidth 0.5
set style fill solid
plot "data.dat" using 1:3:xtic(2) with boxes
set term png will set GNUplot to output a .png file and set output "graph.png" is the name of the file it will output to.
The next two lines are rather self explanatory. The fifth line contains a lot of syntax.
plot "data.dat" using 1:3:xtic(2) with boxes
"data.dat" is the data file we are operating on. 1:3 indicates we will be using column 1 of data.dat for the x-coordinates and column 3 of data.dat for the y-coordinates. xtic() is a function that is responsible for numbering/labeling the x-axis. xtic(2), therefore, indicates that we will be using column 2 of data.dat for labels.
"data.dat" looks like this:
0 label 100
1 label2 450
2 "bar label" 75
To plot the graph, enter gnuplot commands.txt in terminal.
I recommend Derek Bruening's bar graph generator Perl script. Available at http://www.burningcutlery.com/derek/bargraph/
You can directly use the style histograms provide by gnuplot. This is an example if you have two file in output:
set style data histograms
set style fill solid
set boxwidth 0.5
plot "file1.dat" using 5 title "Total1" lt rgb "#406090",\
"file2.dat" using 5 title "Total2" lt rgb "#40FF00"
Related
I'm using GNUPlot to draw the graph of five real-valued functions. I think it is easy to solve, but I am a beginner.
My x-axis has problems with its label. All the xtics numbers are overlapping, and I have no idea why.
My .plt plots 3 files: an .eps, an pb .eps and a .png. It receives a .100 file, which is 6 columns of numbers. The first column represents values for t and the other five columns represent values for each function at respective t.
My .plt file is:
reset
set terminal windows
set style line 1 lt 1 linewidth 3
set style line 2 lt 2 linewidth 3
set style line 3 lt 3 linewidth 3
set style line 4 lt 4 linewidth 3
set style line 5 lt 5 linewidth 3
set style line 6 lt 6 linewidth 3
set border linewidth 3
set xzeroaxis
set yzeroaxis
set xlabel '{/Helvetica-Oblique t (dias)}' enhanced font ',28'
set key center top
set key center right
set key top right
set key box
set tics scale 1.5
set grid ytics
set grid xtics
set xtics 0,250,3500
set ytics 0,0.1,1
set title 'Simulacao' font ',26'
set samples 100
plot "./fort.100" using 1:2 with lines title 'Ms' linestyle 1, \
"./fort.100" using 1:3 with lines title 'Mi' linestyle 2, \
"./fort.100" using 1:4 with lines title 'A ' linestyle 3, \
"./fort.100" using 1:5 with lines title 'H ' linestyle 4, \
"./fort.100" using 1:6 with lines title 'I ' linestyle 5
pause -1
set terminal postscript eps enhanced
set termoption enhanced
set output "xsol-pb.eps"
replot
set terminal postscript eps enhanced color font ',22'
set termoption enhanced
set output "xsol.eps"
replot
set terminal png giant size 900,600 enhanced
set termoption enhanced
set output "xsol.png"
replot
Link for my .eps graph:
How can I fix this problem?
I am also having a problem with the table, at the right top corner of the image. How to fix that?
Two possibilities to avoid "collisions" of data and key:
adjust your scale such that the curve is below the key, in your case e.g. set yrange[0:1.5]
shift the positon of your key, e.g. set key center right or set key at graph 0.8, graph 0.8. Check help key for more information.
I have a csv file like this:
10557,1925080,1236052,1210752,1182492
11254,3159084,2264460,2187584,2144416
11334,2348036,1540692,1504536,1458332
11456,1607704,993228,974676,960308
.....
I want create a chart with these data. I want use the first column as x-axes label, and put all other column like different line inside the chart. how can I do it?
This is my code
set terminal pngcairo enhanced font "arial,10" fontscale 2.0 size 1680, 1024
set size 1,1
set ylabel '[y]'
set xlabel '[FIRST COLUMN FROM CSV]'
set datafile separator ","
set autoscale fix
set key top left
set key box
set output 'Figure1.png'
plot \
"figure1.csv" using 2 w l linewidth 3 lc rgb "black" title "second colum", \
"figure1.csv" using 3 w l linewidth 3 lc rgb "black" title "third colum", \
"figure1.csv" using 4 w l linewidth 3 dashtype 2 title "fourth colum", \
"figure1.csv" using 5 w l linewidth 3 dashtype 5 title "fifth colum"
To get evenly spaced tics on the x-axis which get labelled with the values from the first column use xticlabels:
plot "figure.csv" using 0:2:xticlabels(1)
I'm new to gnuplot and I have a problem:
I have 2 different text files, the first one (file1.txt) is something like this:
Switch,Port,BPS
S1,1,5464091.33
S1,3,5465677.33
S2,2,5463298.00
S2,3,5462729.67
S3,1,5461340.67
S3,3,5461772.33
and I plot "file1.txt" with an histogram:
plot avg_file using 3:xticlabels(stringcolumn(1)."-".stringcolumn(2)) title columnheader
this works fine.
Now I have file2.txt which contains a single value:
AVG_BPS
4844714.81
I would like to plot this value as a constant horizontal line over the previous graph (histogram).
This is my complete script:
# Terminal definition (PNG image)
set term png
# Settings
set datafile separator ","
set output 'myplot.png'
set style data histogram
set style histogram cluster gap 1
set style fill solid border -1
set boxwidth 1
# Graph and Axis titles
set title "BPS"
set xlabel "Switch-Port"
set ylabel "bits-per-second"
# Plot
plot "file1.txt" using 3:xticlabels(stringcolumn(1)."-".stringcolumn(2)) title columnheader
Here is myplot.png:
Thanks
probably the best is to do a stats:
stats 'file2.txt' u 1
hor_value=STATS_min
and then add to your plot:
plot "file1.txt" using 3:xticlabels(stringcolumn(1)."-".stringcolumn(2)) title columnheader, hor_value
or alternatively put a line on top (before the last plot):
set arrow nohead from graph 0, hor_value to graph 1, hor_value front
I am using Gnuplot to draw step functions from an input file:
plot 'myFile' using 1:2 with steps
I want to fill underneath the plot. something like
plot 'myFile' using 1:2 with filledcurves
But Gnuplot fill underneath the diagram by drawing a line between consecutive points.
How can I fill in underneath the step function?
Use the fillsteps plotting style, which is the same as steps, but the area between the curve and y=0 is filled:
set samples 11
set xrange [0:10]
plot '+' with fillsteps fs solid 0.3 noborder lt 1,\
'+' with steps lt 1 lw 4
I am new to gnuplot. I want to generate graph from data points with three components and standard deviation.
My data looks like this:
TYPE1 15 20 65 5
TYPE2 20 20 60 4
TYPE3 10 30 60 6
TYPE4 30 30 40 5
I want to plot a rowstacked bar for each TYPE with the 3 components stacked and an errobar at the top.
I wrote the following script to do this:
set terminal png
set output "sample.png"
set boxwidth 0.75 relative
set style fill pattern 0 border
set style histogram rowstacked
set style data histograms
set xtics 1000 nomirror
set ytics 100 nomirror
set noytics
set mxtics 2
set mytics 2
set ytics 100
set yrange [0:150]
set ylabel "Y"
set xlabel "X"
set title "Sample graph"
plot 'data.dat' using (100*column(2)/(column(2)+column(3)+column(4))) t "A" , '' using (100*column(3)/(column(2)+column(3)+column(4))) t "B" , '' using (100*column(4)/(column(2)+column(3)+column(4))):xtic(1) t "C"
This produced a graph which looks like this: .
But I am not able to get the errorbar on the top of each bar with deviation values in column 5. I tried different ways using rowstacked and errorbar styled bar graphs but had no luck.
For this you must know, that with the histogram style the boxes are placed at the x-positions 0, 1, etc. i.e. at the row number.
So for the errorbars you must use column(0) as x-coordinate:
set terminal pngcairo
set output "sample.png"
set boxwidth 0.75 relative
set style fill pattern 0 border
set style histogram rowstacked
set style data histograms
set yrange [0:150]
set macros
scale = '100/(column(2)+column(3)+column(4))'
set bars 2.0
plot 'data.dat' using ($2 * #scale):xtic(1) t "A" , \
'' using ($3 * #scale) t "B" , \
'' using ($4 * #scale) t "C",\
'' using 0:(100):5 with errorbars notitle lw 2 lt -1
The result with 4.6.3 is:
For convenience I used a macro scale. The macros work as follows: You define a string, like scale = '...' in the script above. That can be used later in any expression as #scale (you must have set macros enabled). The content of the scale string is then replaced before the respective command is executed.