I have been working through plotting in APL and am finding the information on how exactly to do that is not very straightforward. Since visualizing data and arrays is a thing that’s important to intuition I thought I’d start a thread to discuss. My goal is to build up my ability to visualize things while I learn APL as I think that as things get more complex, visualizing things will be helpful in seeing what things are actually doing!
As a starting point, we can create a basic chart using the base plot function like this (passing in multiple vectors in this example).
]plot (1 4 9 16 26) (1 2 3 4 5) -type=scatter
]plot (1 4 9 16 26) (1 2 3 4 5) (2 4 6 8 10) -type=line
In order to see what other types of plots are available in this function you can check the help documentation using ]plot -???. Less question marks will give less detail about the function.
AFAICT sharpplot is more common way to plot in APL and more flexible, though I have not figured out yet how to get that working.
If anyone figures out more - please share information, examples, resources, or anything else! I’ll do the same as I figure out more 
