Plot buffers

This method requires gnuplot.

1. Add a print module after the node whose output you want to plot.
2. Set the in input to the node’s output buffer.
3. Set the file input to the name of the data file that we will plot, e.g buffer.dat.
4. Start gnuplot: $ gnuplot.
5. Plot the file with plot "buffer.dat" with lines.

You can plot several buffers at once with:

gnuplot> plot "buf1.dat" with lines, "buf2.dat" with lines, "buf3.dat" with lines

See gnuplot’s documentation for more advanced uses, like saving to a PNG file, selecting the range, setting titles and so on.