Now it should be fairly simple (or at least simpler) for anybody to generate such graphs for their favorite books. And since the package automatizes the process like if a robot was collecting the coappearances of elements within a text, its name came to be… Robocoap.
For now the package has just one function (novel.coap) intended for books with a novel format. With minor work, and down the road, the package will also handle theater plays & movie scripts formats and, with a little bit more of work, collections of research papers. Until then, enjoy your novels and have fun!