gnuplot : plot pipe output

Question

I have the output a pipe secuence

command_a | command_b | ... | command_n

the output is a sequence a number

4.2
-1
...
0.2

I can use gnuplot to plot this numbers ? (added gnuplot to pipe sequence )

Giannis · Accepted Answer · 2015-08-13 13:55:56Z

1

Did you try with the following?

plot "< command_a | command_b | ... | command_n"

concrete example:

plot "< awk '{a[$1]++}END{for(i in a){print i,a[i]}}' datafile |sort -nk1"

it works for me (tested with gnuplot 4.2 and 5.0 on a linux system).

answered Aug 13, 2015 at 13:55

Giannis

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jpa · Accepted Answer · 2012-09-29 19:48:30Z

0

You can use the '-' source in the plot command. You just need to pipe the command file first and then the data file. For example:

test.gnuplot:

plot '-' with lines

Example command line:

[command generating data] | cat test.gnuplot - | gnuplot -persist

answered Sep 29, 2012 at 19:48

jpa

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1 Comment

JuanPablo Over a year ago

I get this Failed to initialize wxWidgets. line 69: warning: Too many axis ticks requested (>6) line 69: warning: Too many axis ticks requested (>6) line 69: warning: Too many axis ticks requested (>7)

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