6,912 questions
0
votes
1
answer
50
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):(...
- 321
0
votes
2
answers
101
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 ...
- 635
0
votes
2
answers
91
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:
$Data << ...
- 11
1
vote
1
answer
38
views
Gnuplot epslatex terminal: No Angstrom symbol
I am trying to put an Angstrom symbol in xlabel with Gnuplot 5.4 patchlevel 3 :
set term epslatex standalone color colortext
set xlabel "Wavelength, (${\\AA}$)"
But it does not work. Many ...
0
votes
1
answer
58
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 "-" ...
- 2,253
0
votes
0
answers
89
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)=...
- 2,084
0
votes
2
answers
85
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 ...
3
votes
1
answer
95
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 ...
- 33
0
votes
1
answer
44
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 ...
-3
votes
1
answer
71
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 ...
0
votes
1
answer
107
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....
- 71
2
votes
0
answers
116
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 ...
1
vote
1
answer
63
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 ...
0
votes
1
answer
94
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
135
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