To be more precise, the rank of bots is to hight. If you can win easily against bots, you play against them. If you are not that strong, you have to know how to trick a bot to play the same bad moves in every game.
OGS has a publicly accessible api
Search the forum for more information and help
This is a complicated topic. It depends on your experience, what kind of data you have and what you want to visualize.
I would recommend to search the web for a tutorial and software suited to you.
