I have a series of data files [ each file contains three columns ] for which I wish to plot using "splot". Say, the files names are like:
950_data,951_data,952_data,......1000_data.
For one file , say to plot 950_data, i write following lines into a single file and load it in the gnuplot as :
Code:
gnuplot> load 'plot'
and this 'plot' file contains the following lines.
Code:
splot '950_data' with lines
set xlabel "year"
set ylable "population"
set zlabel "country"
set title "950_survey"
set terminal png
set output '950.png'
replot
If you can see that the above is only for file named " 950_data" . I want to do this for all files from 950_data to 1000_data.
It is to be noted that the :
Code:
set title "950_survey"
set output '950.png'
has to be updated properly from 950 to 1000 files we have.
Can anyone help this with the use of the loop in the gnuplot.
Not sure what your data files are like, but how about this:
Code:
set xlabel "year"
set ylabel "population"
set zlabel "country"
set terminal png
do for[i=950:960] {
set output sprintf("%d.png",i)
set title sprintf("%d_survey",i)
splot sprintf("%d_data",i) title sprintf("%d_data", i) with lines
replot
}
Using a loop within gnuplot is the most efficient, but if it's proving to be too hard for you to maintain you could try using a bash/ksh loop and call gnuplot once for each file like this:
Code:
for file in *_data
do
V=${file%_data}
gnuplot <<EOF
set xlabel "year"
set ylabel "population"
set zlabel "country"
set title "${V}_survey"
set terminal png
set output "${V}.png"
splot "${V}_data" with lines
EOF
done
This User Gave Thanks to Chubler_XL For This Post:
Using a loop within gnuplot is the most efficient, but if it's proving to be too hard for you to maintain you could try using a bash/ksh loop and call gnuplot once for each file
Hi Chubler_XL,
I tried with the code like calling gnuplot separately for each file .., but it did not worked.
Is it because the in Gnuplot Version 4.4, the loop features is not introduced ? Because, whenever i load the file containing the code which has " for loop" in it, is not at all executing. A message is displayed like
Code:
for file in *_data
^
"test", line 1: invalid command
And the above line 1 is :
Code:
for file in *_data
Is it due to the version problem of gnuplot or wrong with the way i am using it ?
@ Chubler_XL : I was about to write my comment as it was my mistake in the way i was running the script. But , you have pointed out exactly what mistake i done. Thanks a lot, for your kind cooperation.
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