Gnuplot no variable "pause"

Question

With the following gnuplot script

set logscale y
set title "Residuals"
set ylabel 'Residual'
set xlabel 'Iteration'
plot "< cat log | grep 'solving for p' | cut -d ' ' -f9 | tr -d ','" title 'p' with lines,\
pause 1

and this version

$ gnuplot --version
gnuplot 4.6 patchlevel 2

I get the following error:

"residuals", line 6: undefined variable: pause

How can I fix that?

matt · Accepted Answer · 2020-07-20 19:48:34Z

3

Your plot command is incorrect because the line ends with ",\" which means your line is continuing and pause is being treated as a variable passed to plot. So pause doesn't exist.

I suggest removing ",\".

edited Jul 20, 2020 at 19:48

answered Jul 20, 2020 at 11:34

matt

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2 Comments

Ethan Over a year ago

matt's analysis is correct. It is worth noting, however, that in gnuplot 5 terminating a 'plot' command with a comma produces a warning but the program will continue anyway so that sequence would work.

matt Over a year ago

@Ethan, ahh, formatting caught me there. I was mainly pointing out the "\" causes it to continue onto the second line.

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