6,908 questions
Score of 2
1 answer
89 views
How to find automatically computed margins in gnuplot
Is there a way in gnuplot to determine the automatically computed margins in screen coordinates so that they can be used to set them fixed in another plot? That is if show margins says
lmargin is ...
- reputation score 1430
Score of 1
1 answer
68 views
How to set the default "line" color in the legend of a plot using title lc variable
In a program, I have the following complex command which draws different curves where data are in about 20 different columns:
plot "file.txt" using 2:($5 == 1 && $6==2 ? $10 : 1/0):(...
- reputation score 331
Score of 1
2 answers
120 views
How to make a nonlinear color bar?
I have a data file which has a lot of data between [-5:5] and some extreme data with values around -20. If I use a linear color scale, the smaller magnitude data cannot be seen on the plot. So I am ...
- reputation score 645
Score of 1
2 answers
114 views
Putting a time interval on x axis
I tried to make a graph using gnuplot where I want to plot a price over a time period (4 am to 10 pm but over a larger time period). My input has a date-time column and a price column:
$Data << ...
- reputation score 23
Score of 2
1 answer
44 views
Gnuplot epslatex terminal: No Angstrom symbol
I am trying to put an Angstrom symbol in xlabel with Gnuplot 5.4 patchlevel 3 :
set term epslatex standalone color colortext
set xlabel "Wavelength, (${\\AA}$)"
But it does not work. Many ...
- reputation score 532
Score of 1
1 answer
67 views
How to display large integers on tick labels?
When I plot large integers (on any axis) for a 2D plot, the tick marks get displayed in scientific notation. For example:
for i in 1 2 3; do date +%s%N; done | gnuplot --persist -e 'plot "-" ...
- reputation score 2263
Score of 0
0 answers
101 views
line 0: undefined variable: u - How to make shell not interpret gnuplot variable?
#!/bin/zsh
for i in $(ls rid_*.xvg | sort -V | head -n1)
do
echo ${i}
gnuplot <<- EOF
reset session
FILE="${i}"
set yrange [0:30]
# Gaussian function
g(x)=...
- reputation score 2084
Score of 1
2 answers
96 views
Gnuplot 2D histograms bins in loop
This is a follow up to a similar question Plot with 2D histograms bins answered by @theozh. I've been trying to modify the linked code to work in a loop. However I've encountered a few problems ...
- reputation score 75
Score of 4
1 answer
108 views
How to mark some timeslots with a gray background in gnuplot?
I have a data set over several years that I normally plot as a time-series. See the picture below for an example. I would like to mark the winter-months in the (faked!) indicated way.
But I don't ...
- reputation score 43
Score of 1
1 answer
51 views
gnuplot input and/or tic number processing/formatting
Gnuplot v6.0.3
My data looks like:
2004-01-15 4.89 with a y range in this set of 2 (but potentially +/-200)
My script is:
set term qt font "sans,9" size 1500,750
set decimal locale
set xtic ...
- reputation score 37
Score of -3
1 answer
76 views
Why does Gnuplot date processing always render 01-01-1970?
My data file looks like this:
2025-11-07 4450786
2025-11-14 4347929
2025-11-21 4243246
2025-12-12 4292480
2025-12-19 4272879
2025-12-24 4326509
My script file is:
set autoscale
unset log
unset ...
- reputation score 37
Score of 0
1 answer
112 views
plot difference between calculated and measured data [closed]
I have files of measured data that I want to compare with calculated values.
The calculated plot is exponential decay that I can plot with: plot k + a*exp(b*x). The x axis is time, formatted as %M:%S....
- reputation score 71
Score of 2
0 answers
121 views
Adding folders to GNUPLOT_LIB with set loadpath works fine, once. Has to be repeated for every new session
Interactive session:
set loadpath 'C:\Gnuplot\commands'
show loadpath confirms its inclusion in GNUPLOT_LIB and I successfully load '<command>.gp' and execute the command.
At the next ...
- reputation score 239
Score of 1
1 answer
68 views
Gnuplot provides set loadpath to add folders to GNUPLOT_LIB. Unsure about the proper syntax to be used
I am using gnuplot 6.0.3. The user manual is somewhat out of whack with its syntax for set loadpath {"pathlist1" {"pathlist2"...}}; the { and } brackets are rejected, as are ...
- reputation score 239
Score of 0
1 answer
112 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:
...
- reputation score 187