I am using gnuplot 4.6.
I have many data files named data_1.dat, data_2.dat,...,data_100.dat. Now I want to plot data from file 'data_i.dat' to file 'figure_i.eps'. Of course I can do this sequentially for every file data_i.dat like this:
set term postscript eps enhanced color
set out 'figure_i.eps'
pl 'data_i.dat'
set out
set term wxt
If the number of files is too large, this is not a good method. I know that it is possible to use 'do' command in gnuplot 4.6. Hence something like following could perhaps be done:
set term postscript eps enhanced color
do for [i=1:100] {
set out 'figure_i.eps'
pl 'data_i.dat'
set out
}
set term wxt
However, I don't know how do really specify input and output files inside the loop such that correct numbers will be picked up automatically. Any advice is highly appreciated. Thanks in advance.
You can use sprintf inside your loop:
...
outFile=sprintf("figure_%d.eps", i)
dataFile=sprintf("data_%d.dat", i)
set output outFile
plot dataFile ...
...
Related
I have a script file to generate an eps file with gnuplot. The basics of this script are:
set terminal postcript enhanced color size 30,20 font 'Times-ew-Roman,40'
set xtics -.5,0.125
set ytics 0.1,0.1
set xrange [-0.5,.5]
set yrange [0.,1.6]
set cbrange [-0.5,.5]
set output "file.eps"
plot #whatever i plot
This script generates an eps file, which I can open in ubuntu and I can see is well printed. Now, I want to import this eps into inkscape, but when importing inkscape imports a big frame with only the top left drawn. The rest is blank. Do I have to change anyvalue in my gnuplot script or do something else with inkscape? I tried to open it in inskcape windows and ubuntu versions, and in both cases it happens the same with the same file.
The problem may be that you have not actually asked gnuplot to produce an eps image. Instead you produced a generic PostScript document with a page size that does not match the default. You need to put the keyword "eps" in your terminal command:
set term postscript eps color size 30,20 font "Times-New-Roman,40"
Using a flow where I do a 'scratch' plot first to then gather the 'GPVAL_DATA_Y_MIN / MAX' variables for framing the plot size. I then send the actual plot into PNG file. Still the 'scratch' plot command flashes up on screen which I want to avoid. I was doing a 'help set terminal' to see the available terminals (in my gnuplot session) and was looking for something like 'blind' or 'null' but couldn't find any like that. Is there such a terminal? And what is it's name? (Using gnuplot 4.6 patchlevel 7)
Thanks,
Gert
Since I don't know exactly, how you actually use those values, here are some different possibilities:
Gnuplot's "blind" terminal is called unknown:
set terminal unknown
plot "data.dat"
set terminal pngcairo
set output "output.png"
set yrange[GPVAL_DATA_Y_MIN:GPVAL_DATA_Y_MAX]
replot
Variants of this would be to wrap the set terminal unknown call in set terminal push and set terminal pop to go back to the previous terminal.
Use the stats command:
f = "data.dat"
stats f using 2 nooutput
set yrange [STATS_min:STATS_max]
plot f
If you don't need the values for computations, but only to fit the yrange to your actual data range, then use
set autoscale yfix
or
set autoscale yfixmax
possibly combined with set offsets.
Try to send the output to the null device:
On Linux:
set terminal png
set output "/dev/null"
plot sin(x)
set output "real_output.png"
...
On Windows:
terminal png
set output "nul"
plot sin(x)
set output "real_output.png"
...
Read this SO question or this Wikipedia entry, especially for Windows details.
I`d like to write the math stuff into a plot using gnuplot 5:
I am using the terminal postscript enhanced because as far as I know this terminal is the only only capable of doing such things.
I used this code:
set label 1 at 400,200 '{/Symbol=50\362#_{/=15 350}^{/=15\154}}' front
This gets me everything except the subscribed averageunder the lambda symbol.
I tried everything with {,}and so on but I think I missing the part where I can escape the /SymbolStyle.
Many terminals support enhanced text, not only the postscript terminal.
In order to use another font than /Symbol for the subscript you could change the font explicitely to a different one for this. However, a better approach is to change the nesting so that /Symbol affects only two parts:
set label 1 at 0,0 '{/=50{/Symbol \362}#_{/=15 350}^{/=15{/Symbol \154}_{/=10 average}}' front
plot x
Output with gnuplot 5.0 with wxt is
If you're using the postscript terminal anyway, you could give a try to the epslatex terminal (or cairolatex):
set terminal epslatex standalone color colortext
set output 'equation.tex'
set label 1 at -5,5 '$\displaystyle\int_{350}^{\lambda_{\mathrm{average}}}$'
plot x
set output
system('latex equation.tex')
system('dvips equation.dvi')
system('ps2pdf equation.ps')
I have an image in PDF format and I want to add to an existing gnuplot plot.
My current code is like:
set terminal postscript eps enhanced color solid font "Nimbus Roman No9 L" 35
set output '|epstopdf --filter > Patterns.pdf'
set size 1.8,1.8
set style data histogram
set style histogram cluster gap 1
plot 'Patterns.dat' using ($2/2.90):xtic(1) title col fs pattern 3
and the pdf file is stored in image.pdf.
It can be done, at least with the epslatex terminal. First, for my example, I am going to generate a pdf file which is a gnuplot-generated figure:
set term epslatex standalone
set output "plot1.tex"
plot sin(x)
Now, outside gnuplot, I generate the pdf file (named plot1.pdf):
pdflatex plot1.tex
which looks like this:
To embed this into a gnuplot graph, I use again the epslatex terminal and embed plot1.pdf as I would do with any pdf file in a latex document, using the \includegraphics[]{} environment, with a gnuplot label:
set term epslatex standalone
set output "plot2.tex"
set label at graph 0.75,0.25 '\includegraphics[width=2cm]{plot1.pdf}'
plot x
And, again run pdflatex:
pdflatex plot2.tex
that generates plot2.pdf, which looks like this:
By changing the location of the label you can change the location of the embedded pdf; by changing the width you can change, guess what, the width of the embedded pdf.
Hi guys I'm using Windows and I'm trying to get something done in Gnuplot. I need to set the line style of my graph as dot dash.
http://sparky.rice.edu/gnuplot.html tells me that:
Differs from x11 to postscript
lt chooses a particular line type: -1=black 1=red 2=grn 3=blue 4=purple 5=aqua 6=brn 7=orange 8=light-brn
lt must be specified before pt for colored points
for postscipt -1=normal, 1=grey, 2=dashed, 3=hashed, 4=dot, 5=dot-dash
What does he mean by postscript here? How can I achieve this? I've been trying many times to plot my graph using the command:
plot 'graph1.txt' with lines lt 5 but I don't get the dot-dash line.
Help would be immensely appreciated!
This means that the values given for lt only work when you are plotting to a Postscript file, and will not work if you plot in a window in the straightforward way. Simplest thing would be to plot to a Postscript file using
set term postscript
set output "file.ps"
The plot will be in file.ps.