imbedded gnuplot script problem
 

Hello all.

I have embedded a gnuplot script into a .sh by using

for i in *.spe
do
gnuplot << EOF
set title "File : $i "
set term png
set output "${i%.txt}.png"
plot [0:22000] 'final.res' u 1: (2*$i), '' u 1: (2*$i+1), '$i.spe' w l
unset output
set term wxt
EOF
done
exit 1

That obviously doesn't work (please don't laugh at me, I'm aware it can't) because $i is read as i.spe, not the number i.

Basically I have about 15000 stellar objets so 15000 graphs to plot. for each of them 1:2i from final.res and i.spe are 2 different theoretical models, and 1: (2i+1) are the observed values.

What is the proper way to achieve that?

Hi,

it's been a long time since I used gnuplot and I'm having a little trouble understanding exactly what you want to do. So, if you could post gnuplot commands that will work for a single file we should be able to show you how to fix the script to run over all your files.

Evo2.

Ooops, sorry not clear.

to get only the 6th (say) graph printed to the file '6.png', I would write:

do
gnuplot << EOF
set title "File : $i "
set term png
set output "6.png"
plot [0:22000] 'final.res' u 1:12, '' u 1:13, '6.spe' w l
unset output
set term wxt
EOF
done

and for say the 7th graph, the middle lines would change to

set output "7.png"
plot [0:22000] 'final.res' u 1:14, '' u 1:15, '7.spe' w l


does that clarify? :s

Hi,

ok, I think I understand now. Please try something like the following
Please note that some of my gnuplot syntax may be wrong, but I think that your column numbers should be ok.

HTH,

Evo2.

That clarifies many things. Thanks a lot (: