6,911 questions
0
votes
1
answer
54
views
How can I tell gnuplot to place a label outside the plotting area?
The gnuplot documentation says that "Labels outside the plotted boundaries are permitted but may interfere with axis labels or other text." Doing this seems like it would be straightforward:
...
- 185
1
vote
2
answers
99
views
Display labels on both sides of Gnuplot graph
Gnuplot 5 on Raspberry Pi.
How can I duplicate the y-axis text (-1, -0.8 etc) on both the left and the right sides of the graph?
This is the code used to create it:
set key fixed left top vertical ...
- 33
0
votes
2
answers
42
views
retrieve ruler position for `mouseformat`
Is there a way to have access to the ruler postion?
I'm trying to change the mouse format using set mouse mouseformat function:
It works with something like:
set mouse mouseformat function sprintf(&...
- 3,783
0
votes
0
answers
58
views
Don't display a Gnuplot graph in a window
Gnuplot 5.4 on a Raspberry Pi. When run from the command line in a graphical interface, the script below (which I've pruned a bit) creates a png. As it does so, a window appears then disappears.
set ...
- 33
2
votes
1
answer
61
views
gnuplot 6.0 animation not updating
I've never used stack overflow before, but I don't know who else i can go to for this, so apologies if I don't provide all relevant information.
I am using "gnuplot 6.0 patch level 3 console ...
2
votes
1
answer
49
views
gnuplot: how to color points based on column value when also using hypertext labels?
I have the following gnuplot data file:
1 4 foo 1
2 3 bar 2
5 8 baz 1
I have the following gnuplot command:
set terminal qt
label_text(str1) = sprintf("%s", ...
- 267
2
votes
3
answers
95
views
Drawing a vertical line in Gnuplot and adding a key/legend to it
reset
set encoding utf8
set terminal pdfcairo size 20cm,20cm font "STIX Two Math, 22" enhanced
set output "straight-lines.pdf"
#
set grid linetype 0 linewidth 1 dashtype 3 ...
- 353
0
votes
1
answer
50
views
Gnuplot while loop not looping when I change machines
I wrote a gnuplot script to use an infinite while loop (re)plotting data from a live data source. Something like this:
while (1) {
plot "< get_data | paste x_axis.dat -"
pause 2
}
...
2
votes
1
answer
106
views
Gnuplot `title` using `set` and `show` versus as a follow on to `plot` on polar coordinates
I am using gnuplot 6.0 patchlevel 3 on Manjaro Linux, with the MWE below
reset
set encoding utf8
set terminal pdfcairo size 8in,8in font "STIX Two Math, 24" enhanced
set output "mwe-SO....
- 353
2
votes
3
answers
156
views
How can I plot color cubes?
I have two cubes defined in the $d1 and $d2 data blocks.
If I type these into gnuplot interactively, it works fine.
But if I put the code into a.txt and then run load 'a.txt' in gnuplot, it fails on ...
- 21
1
vote
1
answer
27
views
Second time axis count in weeks
I have a time series that count as dates (set timefmt "%d.%m.%Y"). I would like to have a second, x2 axies displaying the same data in weeks (set format x2 "%Ww"), so I wrote this ...
- 157
1
vote
1
answer
72
views
I cannot plot multiple functions when using for loop
I want to plot multiple functions using for loop, but it always fails to load all of them and could not plot any functions.
For example:
set multiplot layout 2,2
set xrange [-pi:pi]
set yrange [-1:1]...
- 349
1
vote
1
answer
51
views
Transparency and inverted colorbox produce inconsistent colors on gnuplot
I'm encountering a strange issue in gnuplot when combining transparency with an inverted colorbox.
The colors shown in the colorbox do not match the colors actually used in the plot. Additionally, in ...
- 802
0
votes
2
answers
69
views
AUC by integration using Gnuplot results '0'
I am trying to find AUC after fitting a peak and integrating the fit. Following is the code (I am a newbie gnuplot user !^_^!).
FILE = 'rdf_1.dat'
f(x) = (a/2/d*exp(c**2/2./d**2 + (b - x)/d) * (erf((...
- 2,085
2
votes
1
answer
68
views
How to set xtics with xticlabels
I would like to make a candlesticks chart with the day in the X axis for ever 5 days. But when I use "xticlabels" it just ignore the "set xtics 5"
My code:
set terminal pdf size 29....
- 55
1
vote
1
answer
93
views
How to plot multiple colors according to column value and display a legend?
I have the following sample data in a file ("gnuplot_data"):
117 183 C3_V1
74 164 C3_V2
162 53 C3_V3
I want to make a scatter plot where the first 2 columns are X,Y coordinates and the ...
- 267
0
votes
2
answers
36
views
gnuplot: How can I include the year in file name for plotting
How can I include the year in a file name in a gnuplot script?
If it was a bash script, I'd do this:
yr=`date +'%Y'`
plot "./data/$yr_data.dat" binary format="%int32" using (time0+$...
1
vote
2
answers
100
views
Gnuplot colorbox appears blank when inverted using certain terminals
I'm running into a strange issue when generating a plot using
gnuplot (version 6.0 patchlevel 1, on Microsoft Windows version 10.0.19045.5737). To my plot I need the colorbox to appear inverted, i.e., ...
- 802
0
votes
1
answer
83
views
How can I adjust line 32 of the script for gnuplot to recognize the column headers are in string format?
gnuplot gives an error message for line 32 that states '"EMF-free-diagrams.gp" line 32: f_sprintf: attempt to print numeric value with string format. I am not sure how to adjust the code for ...
0
votes
2
answers
74
views
Gnuplot script not adding green background
I have the Gnuplot script below. All looks good except that in the right pie-chart the area that is highlighted with black diagonal lines should have a green background. Update: Thank you. I have now ...
0
votes
2
answers
149
views
Gnuplot installation on Linux for use in Latex [closed]
I want to ask: What is the best way to install gnulot on Linux Mint and to use it in Latex? For Latex I use MikTex and TeXstudio.
Via apt there are 3 options available. I don't know, what the ...
- 1
1
vote
1
answer
100
views
To plot boxes with different colors depending on a given condition
I'm trying to plot the absolute values of a datablock (called $dif) with solid boxes, whose colors depend on whether the y-coordinate is greater or lower than zero, namely
plot $dif u (timecolumn(1,&...
- 187
1
vote
1
answer
68
views
Overlaying two plots with overlapping ranges
In gnuplot, I would like to plot the exponential function on the range [-4:+4] and the natural logarithm function on the range [0.01:4] on the same plot. I.e., I would like to combine the results of ...
- 186
0
votes
1
answer
42
views
Is there a way to obtain GPVAL_DATA_X_MIN, X_MAX, Y_MIN & Y_MAX from a plot, ignoring NaN values in gnuplot?
I've got a datafile with NaNs. The plot is ok, but when I try to get GPVAL_DATA_Y_MIN I obtain 0.0 while the minimum value is in fact 420.0; when I substitute the NaNs by random numbers, then I get ...
- 187
0
votes
0
answers
38
views
How can I execute Gnuplot commands via Sciplot?
I'm working with Sciplot in C++ and want to do things like display extrema, which I hadn't found a way to do before. But Gnuplot is able to do such things.
Can I run Gnuplot commands directly from ...
2
votes
1
answer
76
views
Remove time data gaps on the x-axis on gnuplot
I am currently measuring irradiance data at specific times for at least two days. The data I have is as follows:
12-03-2025 9:00 600
12-03-2025 9:01 601
12-03-2025 9:02 602
12-03-2025 9:02 603
...
12-...
- 33
0
votes
1
answer
54
views
How to avoid unwanted hypertext in SVG when plotting with labels?
This question actually arose from this question.
From help hyptertext:
Some terminals (wxt, qt, svg, canvas, win) allow you to attach hypertext to specific points on the graph or elsewhere on the ...
- 27k
1
vote
1
answer
79
views
In gnuplot, is hypertext available also for bargraphs? I see a popup in term svg, but did not find a way to change it
I would like to create active content evaluations of KPIs. For that I would like to use the mouse over function as availabe e.g. for the point style (hypertext.dem).
Is or will this be available for ...
- 13
1
vote
1
answer
89
views
Gnuplot Histogram and Linecolor Loop
In reference to Gnuplot 6.0. What if the data file is structured not in one line (typical for histograms) but as 3x3 array:
1 0.12 172.7
2 0.11 183.8
3 0.75 55.4
Using loop:
gnuplot -p << EOF
...
1
vote
1
answer
70
views
Overlapping Gnuplot ylabel letters in jpeg, gif, and png terminals
I am getting odd output when I make a graph and output it to a jpeg. The letters for the ylabel are all overlapping in a single space.
A minimal example is
set xlabel "THIS"
set ylabel &...
0
votes
0
answers
54
views
Gradient of a plot calculation in Gnuplot [duplicate]
I've got some data that would be useful to know at which points the gradient is increasing or decreasing.
Data
Would it be possible to change the color of the plot based on whether the gradient is ...
0
votes
1
answer
83
views
How to loop over multiple columns of a table to create contour plots for each column?
The following script is based on "How to create a 2D contour plot for the density of scattered data in gnuplot?". The problem I am encountering is that inside a loop the contouring part with ...
- 465
1
vote
2
answers
201
views
How to create a 2D contour plot for the density of scattered data in gnuplot?
The following script is based on an older topic (Gnuplot: Scatter plot and density). What I need is a contour plot of the scattered data. But there are some things that do not look as I expect. The ...
- 465
-1
votes
1
answer
49
views
How can i plot a nonuniform matrix where one axis is time?
I have a matrix of data (see this gist) which looks like this (with more rows and columns, and without the spaces for alignment):
Timestamp, 45716, 45735, 45826
...
- 47.4k
0
votes
1
answer
101
views
gnuplot, is there a way to switch the gui background color to black?
Is there a way to switch the colors of the gnuplot gui: background to black and text to grey or any other light color.
I'm not talking about the console.
I'm not talking about the plotting area.
I use ...
- 5
2
votes
1
answer
59
views
Conditional tics format: one decimal if >1000 but no decimals if <=1000
When plotting tics, the usual way to get 1k rather than 1000 is
set format y '%.s%c'
Doing so, if I've got values greater than 1000 (but always lower than 2000), the format always renders 1k.
If ...
- 187
3
votes
1
answer
52
views
How to replace macros with functions in gnuplot?
How can the following, increasingly complicated macro stuff be replaced by a function? Calling macros within macros is quite error-prone
sel_col = 'column(selected_column)'
ref_col = 'column(...
- 465
1
vote
1
answer
41
views
It is not possible to extract specific columns of data in gnuplot based on a specific heading
In the following Gnuplot script, I want to extract values from a specific table. This works fine for columns that contain numbers but I cannot extract the path from the column "Measure:volume&...
- 465
1
vote
1
answer
43
views
How can gnuplot select certain named columns within a for loop?
The following script has some strange problems.
When I load it after starting gnuplot, I get the following error:
gnuplot> load "test_plot_data.gp"
"test_plot_data.gp" ...
- 465
1
vote
1
answer
75
views
How to plot connected points from separated data blocks within a file?
The following data file can contain several blocks TP1, TP2, ..., TPn.
How can I connect the points of each first, second, third, ... line with linespoint a diagram?
Example
first plotted line:
TP1 -&...
- 465
0
votes
0
answers
108
views
Gnuplot in Latex does not pass
I am using Latex on Windows 10 with TexLive 2024. Latex documents are created with the TexWorks editor that comes with TexLive. I have installed Gnuplot and entered it in the path during installation. ...
- 11
1
vote
1
answer
37
views
gnuplot: time range is shown incorrectly
I have the following data:
2025-02-08 07:12 3.8
2025-02-08 12:15 4.7
2025-02-08 17:30 7
2025-02-08 19:40 6.3
and the following gnuplot snippet:
reset
set title "Glucose level&...
- 11
1
vote
1
answer
55
views
Position circles in polar grid in Gnuplot
I am trying to understand how Gnuplot places the circles when using a polar grid.
In the below example I would like to change the number and positioning of the circular dotted lines.
I am using ...
- 389
1
vote
1
answer
46
views
gnuplot 6.02 labels as a function of value
A simple gnuplot to generate labels as function of a particular column is here; also, is a function that can input a value and return a string:
set datafile separator ","
set datafile ...
- 830
-3
votes
1
answer
24
views
Need old gnuplot script interpretation
I found a github containing a Voice Activity Detection algorithm here.
the implementation takes in a simple list of doubles (file = sound.txt), and outputs several text files, containing 2 columns of ...
0
votes
0
answers
58
views
How to pass a query (postgres) to gnuplot
I have a table in postgres (named tempdata with columns logtime and value)
From the command line (linux) I can write
echo "select logtime::timestamp , values from tempdata where logtime BETWEEN '...
- 13
0
votes
1
answer
34
views
gnuplot contour stops before reaching border
I have a file with a field (vr-cs) defined between -0 and 30 in x and -30 to 30 in y. You can download the file from here. I'm trying to plot a contour of vr-cs=0 between [0:8][0:3]
set view map
set ...
- 41
1
vote
1
answer
99
views
Problems with pm3d and dgrid3d
I can't plot correctly the data of a file using pm3d and dgrid3d. The result obtained does not respect the desired grid and colours.
To understand what was going wrong, I created the following simple ...
0
votes
0
answers
166
views
wxplot3d writes gnuplot commands which give error
This code was working (at least in 2022):
pz(x,y,z) := z*exp(-sqrt(x^2 + y^2 + z^2)/2)$
wxplot3d(pz(0,y,z),[y,-10,10],[z,-10,10],[gnuplot_preamble,"set contour base;set cntrparam levels ...
- 147
1
vote
2
answers
72
views
Is there a simpler way to create gnuplot filled curves for time data when data is only recorded on changes?
It is easy to create a filledcurve plot when time series data is at small regular intervals, and data changes infrequently.
But what if data is recorded only on changes?
In order to make a shaded plot ...
- 830