I have a collection of csv files with the same 2 column format. I'd like to produce separate xy scatter plots corresponding to each file, but with the same style. The only thing that should change is the input and output filenames. How to do it?
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3 Answers
The solution posted by andyras is perfectly workable. However, in these instances, "HERE" files are typically better since it avoids spawning an extra process and since you won't have problems with mixing single quotes and double quotes ...
for file in $(echo *.dat); do
gnuplot <<EOF
set terminal post enh
set output "output_${file}.ps"
set datafile separator ',' #csv file
plot "$file" u 1:2
EOF
done
1 Comment
Derrick
I like this one because it is cleaner. Thanks!
First, create a text file containing all of the style information, say gplot_prefix.txt. Then, I assume you have some pattern that matches all of the files you want to plot, say *.dat. Then, make a zsh script as follows:
foreach arg in $@
filename=${arg}_plotfile.pl
cp gplot_prefix.txt ${filename}
echo set output ${arg}.png >>${filename}
echo plot \"${arg}\" u 1:2 >>${filename}
gnuplot ${filename}
rm ${filename}
(this may have bugs; my zsh isn't working correctly right now) and call it like
./plotscript.zsh *.dat
Comments
You can create a wrapper bash script and save it as plot.sh:
#!/bin/bash
echo "set terminal postscript enhanced
set output 'output_$1.eps'
plot '$1'
Let's say your data files all have the .dat extension. You would use this by calling
for datfile in $(ls *dat) ; do ./plot.sh $datfile ; done
at the command line in bash.
1 Comment
andyras
Oh, @Dan posted pretty much the same solution.