[feature request] plots in miller

[janxkoci]

Hi John, I was wondering, if we could have support for plots in miller? 😁

Specifically, there is a Go library available, and it is also used by a Go tool csvtk plot, so you can even have a look how it's used there.

Of course, both miller and csvtk support streams & pipes, so we can already do stuff like:

seq 10 | mlr --n2c put '$2 = $1 ** 2' | csvtk plot line -x 1 -y 2 | display # display is from imagemagick
## or save to PNG
seq 10 | mlr --n2c put '$2 = $1 ** 2' | csvtk plot line -x 1 -y 2 > plot.png

Producing:

Since the tools are nicely interoperable, you can consider this request low priority. Unless of course, flocks of users reading this will start begging you to implement it 😉