After the answer got in my earlier post drawing vertical lines in between bezier curves, I have been trying to label the segments separated by the dotted lines. I used x2label but found out that if I use it multiple times then the data gets replaced though they are positioned in different places. Below is the script:
set term x11 persist
set title "Animation curves"
set xlabel "Time (secs.)"
set ylabel "Parameter"
set x2label "Phoneme1" offset -35
set pointsize 2
set key off
set style line 2 lt 0 lc 1 lw 2
plot [0.04:0.15] "curve.dat" u 1:2 smooth csplines ls 1, "" u 1:($2-0.2):(0):(0.3) w vectors nohead ls 2, \
"curve.dat" u 1:2 with points
The output is the following.
I want to label Phoneme1, Phoneme2...and so on.. on top of each segment. How would I do it? Also as I was suggested in my earlier post to play with the line "" u 1:($2-0.2):(0):(0.3) w vectors nohead ls 2 to get a top to bottom vertical lines. But that also did not work. How do I get the lines from top margin to bottom? Thank you.
The horizontal lines
The horizontal lines can be accomplished with setting the yrange to an explicit value. Otherwise gnuplot would try to get some space between the lines and the axis. You could choose the values
set yrange [0.3:1.2]
Then you simply modify the vector using directions like so:
"" u 1:(0.3):(0):(1.2) w vectors nohead ls 2
(see below for the complete script)
The labeling of the sections
A quick way of doing this with your set of data would be this:
set key off
set style line 2 lt 0 lc 1 lw 2
set yrange [0.3:1.2]
plot [0.04:0.15] "Data.csv" u 1:2 smooth csplines ls 1, \
"" u 1:(0.3):(0):(1.2) w vectors nohead ls 2, \
"" u ($1+0.005):(1):(sprintf("P %d", $0)) w labels
However, this will probably not look the way you want it to look. You could think of modifying your data file to also include some information about the labeling like:
#x-value y-value x-label y-label label
0.06 0.694821399177 0.65 0.1 Phoneme1
0.07 0.543022222222 0.75 0.1 Phoneme2
Then the labels line would simply look like:
"" u 3:4:5 w labels
The complete plot then looks like this:
Related
I would like to plot a bar chart or histogram like this in gnuplot.
I tried set style histogram rowstacked which is a start but it adds the columns on top of each other while I need them overlapped. Next is the issue of transparent color shading.
Thanks for your feedback.
UPDATE: user8153 asked for additional data.
The set style histogram clustered gap 0.0 is doing the cluster mode of the histogram bars. If you blur the eye it sort-of shows what I want but with overlap and transparent shading.
The only other histogram modes given in the docs are rowstacked and columnstacked. I never got a plot out of columnstacked so I discarded it. Now rowstacked stacks the histogram bars.
The overlay appearance is there but it is wrong. I don't want the stacked appearance. The histograms have to overlay.
Code :
set boxwidth 1.0 absolute
set style fill solid 0.5 noborder
set style data histogram
set style histogram clustered gap 0.0
#set style histogram rowstacked gap 0.0
set xtics in rotate by 90 offset first +0.5,0 right
set yrange [0:8000]
set xrange [90:180]
plot 'dat1.raw' using 3 lc rgb 'orange', \
'dat2.raw' using 3 lc rgb 'blue', \
'dat3.raw' using 3 lc rgb 'magenta'
Thanks for your feedback.
Given a sample datafile test.dat
-10 4.5399929762484854e-05
-9 0.0003035391380788668
-8 0.001661557273173934
-7 0.007446583070924338
-6 0.02732372244729256
-5 0.0820849986238988
-4 0.20189651799465538
-3 0.4065696597405991
-2 0.6703200460356393
-1 0.9048374180359595
0 1.0
1 0.9048374180359595
2 0.6703200460356393
3 0.4065696597405991
4 0.20189651799465538
5 0.0820849986238988
6 0.02732372244729256
7 0.007446583070924338
8 0.001661557273173934
9 0.0003035391380788668
10 4.5399929762484854e-05
you can use the following commands
set style fill transparent solid 0.7
plot "test.dat" with boxes, \
"test.dat" u ($1+4):2 with boxes
to get the following result (using the pngcairo terminal):
Using transparency as in user8153's solution is certainly the easiest way to visualize an overlap of two histograms.
This works even if the two histogram do not have identical bins or x-data-ranges.
However, the color of the overlap is pretty much bound to the colors of the two histogram and the level of transparency. Furthermore, if you want to show the overlap in the key you have to do it "manually".
Here is a solution where you can choose an independent color for the overlap area.
The overlap is basically the minimum y-value from both histograms for each x-value.
For this you need to compare the y-values for each x-value. This can be done in gnuplot with some "trick" by merging the two files line by line. This requires the data in a datablock (how to get it there from a file). Since this merging procedure is using indexing of datablock lines, it requires gnuplot>=5.2.0.
This assumes that you have the same x-range and bins for each histogram. If this is not the case, you have to implement some further steps.
Script: (works with gnuplot>=5.2.0, Sept. 2017)
### plot overlap of two histograms
reset session
# create some random test data
set samples 21
f(x,a,b) = 1./(a*(x-b)**4+1)
set table $Data1
plot '+' u 1:(f(x,0.01,-2)) w table
set table $Data2
plot '+' u 1:(f(x,0.02,4)) w table
unset table
set boxwidth 1.0
set grid y
set ytics 0.2
set multiplot layout 2,1
set style fill transparent solid 0.3
plot $Data1 u 1:2 w boxes lc 1 ti "Data1", \
$Data2 u 1:2 w boxes lc 2 ti "Data2"
set print $Overlap
do for [i=1:|$Data1|] { print $Data1[i].$Data2[i] }
set print
set style fill solid 0.3
plot $Data1 u 1:2 w boxes lc 1 ti "Data1", \
$Data2 u 1:2 w boxes lc 2 ti "Data2", \
$Overlap u 1:($2>$4?$4:$2) w boxes lc "red" ti "Overlap"
unset multiplot
### end of script
Result:
I'd like to start by saying I am very new to gnuplot. I am attempting to plot multiple stacked histograms that have been normalized so that the height of each bar is 1. I'd also prefer to no have to amend my data files to include the total as the last entry as I have a lot of data files to plot and this would take a lot of time. I've looked around and I know this can be done, but I have been unsuccessful in adapting examples I've found to work with the code I am using.
The data file I am using (shortened considerably) is named "Test.dat" and formatted as follows:
#a = 2
#b 1 2 3 X
b=1 1 3 1
b=2 0 1 1
#a = 4
b 1 2 3 X
b=1 1 1.5 1.5
b=2 1 2.1 1.9
Here each row beginning with b=x is meant to be a single bar, and there are two groups of two bars corresponding to an a=x. My .gp file currently looks like this:
set style data histogram
set style histogram rowstacked gap .5 title offset 0, -1
set style fill solid border -1
set boxwidth .75 relative
set yrange [0:]
unset xtics
plot \\
newhistogram "b=2" lt 1, for[col=2:4] 'Test.dat' index 0 u col:xtic(1) notitle \
,newhistogram "b=4" lt 1, for[col=2:4] 'Test.dat' index 1 u col:xtic(1) notitle \
This give the image, but this is what I would like to get. I'd appreciate any assistance you could provide.
You have missed a comment sign "#" in the second data bolck.
You have to separate each data block with 2 blank lines.
You are using "b=1" and "b=2" in the data file, but "b=2" and b=4 in the script.
Last: gnuplot is able to make stacked histograms, but there is no way to normalize them automatic, but manually :-/
set style data histogram
set style histogram rowstacked gap .5 title offset 0, -1
set style fill solid border -1
set boxwidth .75 relative
set yrange [0:]
unset xtics
plot \\\
newhistogram "b=1" lt 1, for[col=2:4] 'Test.dat' index 0 u (column(col)/$5):xtic(1) notitle, \
newhistogram "b=2" lt 1, for[col=2:4] 'Test.dat' index 1 u (column(col)/$5):xtic(1) notitle
If I set a specific yrange and plot in a pdf terminal with this plot command:
plot "data.dat" u 1:4:5:6 w yerrorbars pt 6 ps 0.5 t "R_t"
errorbars that belong to data points outside the yrange, but end inside the yrange are not shown.
How do I force gnuplot to draw those. I already tried "set clip one/two"
The only workaround I found is to plot the data 3 times, once for the central point and once for each side of the error bar.
Use "-" as symbol for the errorbars and use their own "errorbars" to draw a line to the central point.
You could use multiplot to achieve this.
Set your plot to have zero margins, so the axes are on the border of the canvas, and switch of all tics and borders for the first plot.
Switch on the axes, tics etc. again, and do an empty plot that you set at the correct position using set size and set origin. You'll have to do some math to calculate the exact position.
#MaVo159, you can reduce it to plotting only twice by using with yerrorbars and with vectors (check help vectors). You need to set the proper arrow style, check help arrowstyle.
However, this works only for gnuplot>=5.2.3, for earlier versions there seems to be a bug which plots the arrowhead at the wrong side for some of the vectors extending the graph.
You nevertheless have to plot once with yerrorbars in order to get the proper legend.
Script: (works for gnuplot>=5.2.3, May 2018)
### plot errorbars from points outside the range
reset
$Data <<EOD
1 9 5.11 8.32
2 8 6.20 9.22
3 6 5.31 6.31
4 5 4.41 5.51
5 4 3.31 4.71
6 2.9 2.81 3.71
7 2 1.11 3.41
EOD
set yrange[3:7]
set offsets 1,1,0,0
set style arrow 1 heads size 0.05,90 lw 2 lc 1
set multiplot layout 2,1
plot $Data u 1:2:3:4 w yerrorbars pt 6 ps 2 lw 2
plot $Data u 1:2:3:4 w yerrorbars pt 6 ps 2 lw 2, \
'' u 1:3:(0):($4-$3) w vec as 1 notitle
unset multiplot
### end of script
Result:
You could modify your data file: Because the central value of the data point is outside the plot range you could set it equal to the errorbar's end point that would be still visible in your plot.
Example:
plot range: set yrange[-2:2]
data point: 1, -3, -1, -4 (x, y, ylow, yhigh)
set data point to: 1, -1, -1, -4
Attention: Since you have to edit your data file you should
Make a copy of the original data file
Be very careful when editing the file
Keep in mind, that when changing the plot range such that the central
value of the data point becomes visible you have to use the original data point. Otherwise you will see the correct error bar but there will be no central value plotted. (this is equivalent to setting 'point type' to 0)
This is my gnuplot digram. My digram is this:
I want to create this one:
From each point on the line. create a line to X and Y:
Change the color of the points to another thing than red.
This is my plot script:
set terminal png size 900,600 enhanced font "Helvetica,20"
set output 'All recived Packet in the network per second.png'
set grid
set xlabel "Transmision Range"
set ylabel "All of recived Packet in the network per second"
set title "Recive Packet pre second"
plot "NumOfRcvPkt.dat" using 2:3 title 'Transmision Range' with linespoints
Also here is the content of NumOfRcvPkt.dat file:
0 15 124
1 20 105
2 25 82
This is achieved as follows:
xmin=14 ; ymin=80
set xrange [xmin:*] ; set yrange [ymin:*]
plot "data" u 2:3 w l lc rgb "red", \
"" u 2:3 w p pt 7 lc rgb "blue", \
"" u (xmin):3:($2-xmin):(0) w vectors nohead lt 2 lc rgb "black", \
"" u 2:(ymin):(0):($3-ymin) w vectors nohead lt 2 lc rgb "black"
The first two lines set the ranges. This is important because you need to know where the edges lie in order to draw your black dashed lines.
Then, for the plot command, the first line plots the data with red lines, the second plots the data with blue circles, the third one plots horizontal black dashed lines and the fourth one plot vertical dashed lines. In order for your terminal to accept dashed styles (selected with lt 2) you need to add dashed, e.g. set term png dashed.
This is the result:
I'd like to draw an impulse graph from a text file that looks like this:
II 5 0 0 288.40 1.3033e+14
II 6 0 0 289.60 1.5621e+14
II 1 4 0 302.70 3.0084e+13
II 2 4 0 303.40 4.0230e+13
II 1 5 1 304.40 3.4089e+13
The plot conceptually should be plot "datafile.dat" using 5:6 w impulses ls $2.
Basically, given a previously defined set of line styles, I'd like to input the line style number from column 2 for every couple of plotted points from column 5 and 6.
Also I'd like to create a text box, for every plotted point, taking strings from the first four columns.
Does somebody know if that's possible?
To use the data from column two as line style use set style increment user and linecolor variable:
set style increment user
plot "datafile.dat" using 5:6:2 with impulses lc var
In order to place a label, use the labels plotting style:
plot "datafile.dat" using 5:6:1 with labels offset 0,1
Putting everything together, you have:
set style increment user
set for [i=1:6] style line i lt i
set yrange [0:*]
set offsets 0,0,graph 0.1,0
plot "datafile.dat" using 5:6:2 with impulses lc var, "" using 5:6:1 with labels offset 0,1
The result with 4.6.3 is:
Thanks for the helpful answer above. It almost solved my problem
I'm actually trying to use a column from my data file to specify a linestyle (dot, squares,triangles, whatever as long as it's user-defined), and not a linecolor. Is there any way to do that?
This line works : I get points with different colors (specified in column 4), but the point style is the same.
plot "$file" u 1:2:4 w p notitle lc var, "" using 1:2:3 with labels offset 0,1 notitle
Replacing lc with ls after defining my own styles doesn't work (ls can't have variable as an option)
I can live without different linestyles, but it would be much prettier.
You only have to replace the lineset for [i=1:6] style line i lt i for set for [i=1:6] style line i lt i pt %, Where % can be any type of point you want