Questions tagged [gnuplot]

Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms.

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How to format Octave plots to be indistinguishable from MatLab

I have a non-commercial license for Matlab that puts the restriction that I cannot present any plots generated by MatLab to commercial clients. Recently, I started using GNU Octave and found that ...
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create a 3D surface using gnuplot of x, y, z data

I have a file containing x, y, z data. I want to create a 3D surface but I have no idea how to do it. I have created a file with the data but when I execute it in gnuplot I get the following message &...
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1answer
505 views

Plotting multiple columns in gnuplot

I have these data: -22.42778 20.55840 -4.3E+0015 -22.41731 20.58783 -4.3E+0015 -22.40206 20.59463 -4.3E+0015 -22.39814 20.57130 -4.3E+0015 -22.39906 20.53965 -4.3E+0015 -22.39983 20.50836 -...
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Notepad++: Edited and saved gnuplot script is not read properly

When editing and saving a gnuplot script in Notepad++ (on Windows, obviously) and then immidiatly executing it, I almost always get error messages about crazy syntax errors that don't exist in the ...
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31 views

Plotting modified data in gnuplot

I have generated a data file named silicon.dos while performing Density Functional Theory (DFT) calculations using Quantum Espresso on Ubuntu. The data file looks like this: I plotted it using the ...
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203 views

How can I add a semi-transparant vertical plane in 3D plot in gnuplot?

I am trying to plot a three dimensional plot with a data file which is successfully plotted using Gnuplot. Now within that plot I have to add a semi-transparent vertical plane like parallel to xz ...
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22 views

Prevent the legend from being obscured in gnuplot's "dumb" terminal

Gnuplot's set term dumb is useful for visualizing data directly on a remote PC, where a GUI may not be available. However, I am seeing an issue, where the legend becomes obscured, causing the result ...
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138 views

gnuplot replace old plot with new

I am running a program which uses a plotting library for gnuplot. I am running a script and am supposed to view the resultant plot in real time. Inside the do loop, the plotting command would come ...
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1answer
746 views

including Angstrom and Greek letters in gnuplot?

I am using gnuplot and would like to get the symbol for "Angstrom" (iso encoding 305) and the Greek letter Delta (Symbol 104) in the plot. How can I combine the two encoding schemes when producing my ...
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1answer
24 views

GNUPLOT command syntax

I have used GNUPLOT a few years from from my own software and I am increasingly impressed by its flexibility and power. One case I want to plot is several columns from a table generated by my ...
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205 views

GnuPlot how do I plot a wireframe surface with uneven grid data

I am trying to plot a set of grid data with specific axis values where the y-axis is uneven (eg ... 150 180 195). Believe it or not, it's the deformation in an concrete ceiling that I want to level ...
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46 views

Draw a graph with gnuplot

I found a graph in Wikimedia collection of graphs made using gnuplot. Its URL is https://commons.wikimedia.org/wiki/Category:Gnuplot_diagrams#/media/File:Boucle_comby_paris_2011.svg . It was done by ...
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169 views

Plotting a data file using matrix with image and multiple arrows

How can I plot a data file matrix with image and some horizontal lines (no head arrows) on the same figure? I already tried this code: set arrow 2 nohead from 0,50, graph 0 to 200,50, graph 1 front ...
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1answer
13k views

Is there a way to show only specific values in x-axis of an excel chart?

In my problem, I have 0.1 0.2 0.5 1.0 on the x-axis and I want to plot my chart by showing only these values on the horizontal-axis. Is there anyway or any extension (like kutools) to make this happen ...
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1answer
177 views

Gnuplot - can "smooth frequency" work whole file (including multiple datablocks/indices)

Situation Two metering devices (A, B) give data like # meter A time1 14.5 time2 9.3 time3 11.1 … Thanks to some "binning" the timestamps from A and B might be identical (think of ice cream cones of ...
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307 views

No install option displayed when installing gnuplot using brew

I want to install gnuplot with options like --with-aquaterm, --wx ..., but when I type brew options gnuplot before installation, terminal displays nothing. When I installed gnuplot before, there was ...
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10k views

Trouble with readline library on mac

I was updating some programs on my mac and I suddenly encountered some troubles running gnuplot. The error was something like : dyld: Library not loaded: /usr/local/opt/readline/lib/libreadline.7....
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379 views

Translate/scale axes on splot (heat map) of matrix in Gnuplot

I'm trying to load a 60x150 matrix from a data file to create a heat map. I would like for these data points to span the range [-30,29] on the y axis, and [0:1490] on the x-axis. How can I scale/...
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198 views

How can I install gnuplot from this point?

When I try to install gnuplot from this website, and I extract the .tar.gz file twice, I see the following: How do I install gnuplot from this point? Also, where is the 'bin' folder? (As the bin-...
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0answers
311 views

How to open windows window from gnuplot cmd

I'm trying to force GNUplot plot in windows terminal when I invoke it from CLI. What exactly I want: WIN + R gnuplot set term windows (gnuplot when invoked from windows CMD doesn't know this type of ...
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1answer
584 views

GnuPlot - Multiple time series in data, plotting separate lines

I have a SQLite3 database which contains data similar to the following time_index Circuit dateTimeRecorded activepower 404503 GPOs 2018-05-30 00:03:50 ...
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1answer
870 views

How to plot sin(x) + sin(y) = 1 in gnuplot?

I am trying to plot the parametric function sin(x) + sin(y) = 1, but I'm not quite there yet. Here's my script: set parametric set urange [-10:10] set vrange [-10:10] set sample 2000 set size ratio -...
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864 views

cannot omit right margin in gnuplot

I have a plot and want to omit the white margins around the plot but the rmargin doesn't influence the plot: enter image description here below is the gnuplot code: set terminal postscript enhanced ...
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260 views

The following package has umet dependencies:

I did apt-get dist-upgrade and got this error while installing. The following package has umet dependencies: gnuplot-qt : Depends: gnuiplot-data (=5.0.7+dfsg1-1) but it is not installed E: Umet ...
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197 views

Data visualization: how to make special 2D plot from 3 columns of data?

Recently I found the following plot: and I'm curious if something like this can be done with e.g. Gnuplot (or other software)? I do have data in three columns i.e. distance angle energy. Has anyone ...
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875 views

How to plot summation over exp function in gnuplot?

Is there any short way to plot the following summation of exp function? plot f1*exp(-0.001*(x-L1)^2) + f2*exp(-0.001*(x-L2)^2) + etc where f and L values are sorted in coulmns 1 & 2 in the file ...
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3answers
1k views

Start an interactive session in gnuplot and execute some commands when it opens

When I execute my script, it should Open a terminal with gnuplot (interactive session) Execute some gnuplot commands. The interactive session stays open. (user can execute commands) I've tried the -...
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2answers
2k views

Creating new data in a table and do a fit

I want to do the following: I have a data set following a Gaussian line shape, but there are some data which is strongly deviating. For the resulting fit these data points should not be included. So ...
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1answer
2k views

GNUPlot - Contour Plot Without Isolines?

I want to know how to do a contour plot of a 3D-dataset, but without the isolines. The closest to what I'm looking for that I've seen are heat maps, but that requires your data to be in the form of a ...
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1answer
390 views

gnuplot abbreviation reference

Where are the gnuplot abbreviations specifically documented? For example:- the single letter "l" command. > help l gives a big list and does not identify what the single letter "L" command is ...
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4k views

Gnuplot colorbar. Control of numbers steps and format

I'm trying to create a chart using Gnuplot, as shown here: My questions about it: How to control the numbers of the colorbars in Gnuplot? I want to set the number for each 2 points. For example, ...
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2k views

Gnuplot - Fixing see-through 3D plot interpolation

In the picture below, you can see the lines through the interpolated surface. How can I prevent this from happening? I have produced the plot by the following commands ("data.txt" holds a set of ...
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1answer
379 views

Plot a toroid with rectangular cross-section in 3D

Does anybody know how to plot with gnuplot in 3D the surface of a disk on the XY-plane with a certain thickness, and having a circular hole in the center and flat upper and lower surfaces at fixed z (...
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1answer
2k views

how to get different offset in gnuplot labels

I found a very weird way to plot horizontal lines of discrete values with labels on the left or on the right of the lines I construct an input data file where: the values in the 1st column determine ...
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1answer
2k views

How to plot column in unix in one line

I would like to plot a column of data output by a script in unix in just one line. For example, something like script | cut -f2 -d ',' | gnuplot ....
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3answers
17k views

Execute gnuplot from cmd

I need to execute gnuplot from the Windows cmd, however, when I type in gnuplot, I get the error: “gnuplot” is not recognized as an internal or external command, operable program or batch file. ...
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1answer
3k views

Installing Cairo terminals in Gnuplot (Ubuntu)

I didn't find the "cairo" terminals installed with Gnuplot downloaded from the project site: they aren't listed after set terminal. How do I install it? I can't find any instructions on the internet. ...
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15k views

How to plot data with lines and label in each point?

I have an archive "curva-l" with the data: 2.308E-05 5.397E-01 1.0E-09 2.318E-05 5.224E-01 1.0E-08 2.426E-05 5.029E-01 1.0E-07 4.012E-05 4.718E-01 1.0E-06 1.311E-04 4....
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1answer
134 views

Blender's features missed in gnuplot?

I am designing a particle physics visualization where electron accelerates in a hole and multiplies in many other electrons in a high electric field through avalanche. I know that Blender has ...
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1answer
2k views

GNU plots_Plotting histograms from given set of values against the number of their occurances

How can we plot a histogram from a csv file containing all data into a single column. I need to plot those values vs the number of times they get repeated.
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1answer
86 views

Gnuplot: a different way to write the same function in 1d and 2d

I am confused about following type of function f(x) = b/x**nb * exp(y_(y)/k) f(x,y) = (b/(x**nb))*exp(y/k) Here y seems to be the same in the two expression. I would like to understand the ...
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1answer
119 views

Logs of Gnuplot for startupt?

I have now many times uninstalled and installed different gnuplots. However, now, the gnuplot with qt crashes in the startup if I simply run gnuplot -e "plot 'data.dat'" The crash occurs such that ...
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1answer
3k views

Automatically open a file when gnuplot starts on Windows

I would like to assign gnuplot to .gnuplot files (gnuplot scripts) on Windows 8.1, in such a way that the gnuplot environment starts with the script file loaded. For this I would need to pass the ...
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0answers
558 views

How can I edit the delay of the first frame of an animated gif

I've assembled a gif using gnuplot, however I want the first frame to be still for a few seconds before the graphic starts animating. How can I edit the delay of the first frame of the gif?
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1answer
987 views

How to use mathematical functions not built-in in gnuplot

I've always considered gnuplot as very useful, and even more since I use tikz in LATEX documents. Unfortunately, the number of core implemented functions in gnuplot is quite small, I often need ...
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1answer
5k views

Cannot install gnuplot with aquaterm support (OS X Yosemite)

I'm having issues trying to get aqua term support in gnuplot. I've installed aquaterm, rebooted the system, then installed gnuplot using homebrew. When I start gnuplot, it sets terminal to 'unknown' ...
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2answers
13k views

Plot .gnu file with gnuplot

I have a file with .gnu extension.It contains gnuplot commands. I want to show up the graph, using gnuplot. So, which command is right for this.
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1answer
705 views

Scale patterns in Gnuplot (without resizing the whole output)

I want to create a plot with the eps terminal using patterns to fill the area between some curves, for example using these commands: set terminal eps size 4, 4 set output "plot.eps" plot x**2 with ...
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1answer
2k views

Data comparison and plotting in gnuplot

The data that I have is in this format in the text file : #REY2_0 REY1_0 alpha1 alpha2 omega 100 200 (-0.1,0) (1,0) (0.94379237,-0.052310783) The list of values is quite long. ...
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2answers
9k views

How to set axis same in length in gnuplot

I am making a map with gnuplot. But, I find that the length of X axis is not equal with the Y axis. For example, the length of X from 0 to 10 is 20 pixels while 15 pixels in Y axis from 1 to 10. Can I ...