Questions tagged [gnuplot]
Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms.
98
questions
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In gnuplot, how to plot with lines but skip missing data points?
I've got a value associated to each day, as such:
120530 70.1
120531 69.0
120601 69.2
120602 69.5
# and so on for 200 lines
When plotting this data in gnuplot with lines, the data points ...
13
votes
3
answers
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Looking up gnuplot abbreviations
I'm new to gnuplot. I am reading the manual but am having a hard time finding explanations for some of the abbreviations people use in their scripts. For example, I am working with an script that says:...
11
votes
1
answer
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How do I divide one column in gnuplot?
I have gnuplot data file.
I would like to plot it, but divide every value in the x-axis by n.
Can I do this from within gnuplot, or do I have to rewrite the data file?
11
votes
1
answer
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create a smooth surface using x,y,z data gnuplot
I have a file which contains x,y,z data. Actually, the data is:
x = latitude
y = longitude
z= Depth
I want to create a smooth surface but I have no idea how to do it. Could anybody give me some ...
9
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4
answers
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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....
9
votes
2
answers
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How to connect points with curves in gnuplot
I have some data that I want to connect them with smooth curves. I do not want lines. I am attaching some points below. Instead of lines, I want to have a curve. Can anyone tell me how to do this in ...
8
votes
2
answers
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How to plot dot labeled data?
I'd like to turn a file like:
Name X Y
a 1 2
b 4 1
s 3 3
in a X-Y graphic with the X-Y dots labeled with Name.
How can I do it? I think this can be done with gnuplot, but I wasn't ...
7
votes
2
answers
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Specifically marking a point in gnuplot
suppose I want to plot a graph and I want to show on the graph some important points. How do I do this in gnuplot? For example, in the graph of y = x2, I want to show (2,4) and (4,16).
7
votes
1
answer
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How do I define a function in parts for plotting?
I use gnuplot for plotting functions. This is my script at the moment:
set terminal png xffffff x222222
set output "Ausgleichszahlungen.png"
set title "Ausgleichszahlungen"
set xlabel 'F_MZ / A_MZ'
...
7
votes
2
answers
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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....
7
votes
1
answer
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Plotting Pairs of Ordered Pairs in Gnuplot
If I have a data file with 4 columns:
x1, y1, x2, y2,
How can plot a line connecting (x1, y1) to (x2, y2) for each element (row)?
I assume it is pretty easy, but I have been playing around for an ...
6
votes
2
answers
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Which gnuplot terminal type should I use in org-babel-gnuplot with latex export
All gnuplot examples on http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-gnuplot.html use the png terminal. However, when exporting to latex I'd rather like to generate vector graphics. ...
4
votes
2
answers
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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.
4
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2
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How can I split the wedges of a pie chart to show extra information per wedge in consecutive rings?
I'm plotting disk partitioning and available space.
I have a pie chart showing the partitioning: e.g. 30% /, 70% /home.
In the second ring I want to show that 90% / is full, 10% of / is empty. 10% /...
4
votes
1
answer
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Plotting Error Bars with GNUPLOT
I can't get gnuplot to make a plot with error bars when my x values are non-numeric.
For an example "data.dat":
day col1 col2
MONDAY 12 4
TUESDAY 10 3
WEDNESDAY 9 2
...
4
votes
1
answer
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How can I graph memory usage by user?
Basically, I want to graph the memory usage with each username as title, as time passes by. I would set that script as a cron job, to create a graph that shows memory usage of certain usernames.
How ...
4
votes
1
answer
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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 ...
4
votes
1
answer
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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.
...
4
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1
answer
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How to make gnuplots fullscreen?
How can I make gnuplot plot its plots in full-screen instead of a small window?
4
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1
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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 ....
3
votes
1
answer
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Looking for a graph program for time series
I want to find software (Windows or Linux) that can create time based graphs with the following wishes. Can you suggest which programs come closest to my wishes?
Whishlist:
The x-axis has to display ...
3
votes
3
answers
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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.
...
3
votes
2
answers
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Installing gnuplot from MacPorts failed (Checksum Mismacth)
I have OSX 10.5 and tried to sudo port install gnuplot, only to get this:
---> Computing dependencies for gnuplot
---> Verifying checksum(s) for gnuplot
Error: Checksum (md5) mismatch for ...
3
votes
1
answer
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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 ...
3
votes
2
answers
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Software GNUPlot not launching from GNU Octave
I'm trying to launch GNUPlot from Octave, but when I do I get the following error:
octave-3.4.0:3> plot(x,y)
dyld: Library not loaded: /usr/X11/lib/libfreetype.6.dylib
Referenced from: /usr/X11/...
3
votes
2
answers
2k
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How to plot data for several signals, one above the other?
Following this question.
How can I command gnuplot to draw this plot:
(from the bottommost example on this page).
I guess I need to do something similar to what is being done here. But what
...
3
votes
2
answers
670
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Plot the area between two curves
I have a function with a parameter z similar to the above one:
y = sin(x+z)
How can I plot the values of y as a function of x and all the possible values of z in the [0.1, +0.1]?
I want to graphic ...
3
votes
3
answers
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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 -...
3
votes
1
answer
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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, ...
3
votes
1
answer
6k
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Plotting multiple xy pairs in Gnuplot from file
I have a data series that I'm trying to plot in Gnuplot of the format:
x1, y1, x2, y2 ... xn, yn
Where every two adjacent columns represent an xy pair. I'm looking for a way to plot each of these xy ...
3
votes
1
answer
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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 ...
3
votes
1
answer
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How do I use gnuplot to create a 3d phase-space plot?
Have a look at this webpage - enclosed but not encrypted
For a three-dimensional phase-space plot, the sequence a, b, c, d, e,
f, etc. can be used as space coordinates (a-b, b-c, c-d), (b-c, c-d,
...
3
votes
0
answers
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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 ...
3
votes
1
answer
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Specifically define colors of bars in histogram
See updated question below!:
(1 Old stuff)
I have the following code:
clear
reset
unset key
# Make the x axis labels easier to read.
set xtics rotate out
# Select histogram data
set style data ...
2
votes
2
answers
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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 ...
2
votes
1
answer
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Wrap title in Gnuplot
It's all in the subject.
I use a (long) line from the data file as a title, and Gnuplot doesn't wrap it.
I don't know the contents of the line in advance,
so I don't know how I can just insert a \n.
...
2
votes
2
answers
3k
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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 ...
2
votes
2
answers
2k
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Plot custom log data on GNU/Linux
I'm logging some data relative to clients NFS usage over a network. Now I want to plot it on a lines diagram, and I'm overwhelmed by the possibilities I'm finding out there. No one seems to be easy to ...
2
votes
1
answer
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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 ...
2
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2
answers
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Plotting function defined in a piecewise manner with Gnuplot
I’d like to plot some function f(x) where f(x) = x for 0 ≤ x ≤ a, and −2 otherwise. And I’d like to plot it on a graph with x axes between two arbitrary points.
How would I go about doing this with ...
2
votes
2
answers
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How can I create a pie-chart with gnuplot?
I want to create a pie-chart. Is that possible with gnuplot and how to realize that?
2
votes
1
answer
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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-...
2
votes
1
answer
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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.
2
votes
1
answer
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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 ...
2
votes
2
answers
670
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gnuplot - operating on a two digit column
I'm trying to operate on a column prior to its plotting. This is the line I'm having issues with:
plot campo1 u 1:($22*0.05)
where campo1 is the path to the file. The problem is that gnuplot ...
2
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1
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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 ...
2
votes
1
answer
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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 ...
2
votes
2
answers
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Making system calls to bash from gnuplot scripts in Ubuntu based distros
My question is: How can I change the default shell of gnuplot? I want to change it in order to send stdout to bash.
This should be pretty easy, but I'm giving up. Here's why.
I'm running gnuplot ver....
2
votes
2
answers
1k
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Plotting timedata in gnuplot
I have a log file (auth.log) where non-relevant lines has been removed.
I wish to aggregate lines per hour/day into the plot, meaning that each line that is within the same hour or day is aggregated ...
2
votes
1
answer
4k
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Gnuplot GUI for Ubuntu 10.10
Is there a Gnuplot GUI (equivalent to wgnuplot.exe) for Ubuntu ?