How do I plot a column of a file from the command line, e.g. using gnuplot?

Question

I have a text file stats.txt with a numeric column "age" that is the 3rd column. How do I plot the column "age" from the command line?

I want to be able to do something like :

    cat stats.txt | awk '{print $3}' | plot

What's the cleanest way to do this ?

Christoph · Answer 1 · 2015-05-11T17:46:22.173

1

To plot from the command line just do

gnuplot -persist -e "plot 'stats.txt' using 0:3"

edited May 11 '15 at 17:46

answered May 11 '15 at 15:24

Christoph

What if instead of stats.txt I want the output for a script ? – user196711 Feb 25 '16 at 02:17
@user196711 Then you must use something like `./script.sh | gnuplot -persist -e "plot ' – Christoph Feb 25 '16 at 07:09

1 Answers1