HI, I use the command plot in Perl to draw a graph:
plot "data.txt" using (\$1/3600):(\$2) with lines, "data2.txt" using (\$1/3600):0 with points lt 3
I am not vey clear with the variables $1 and $2. I did not define them in my file, what are they?
"with points lt 3" how can find more information about points and lines in perl?
Thanks,
Wenpeng
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