The function returns the coordinates of the vertices of the Hasse diagram.
vertices(C, shape = c("square", "circle", "equispaced"), noise = FALSE)
cover matrix, an object of class S3 cover
.
shape of the diagram. See details.
some noise on the axis of ascites in order to distinguish possible overlapping relations. Values can be boolean or positive values to obtain different noise intensities.
Possible shapes of the diagram are: square
; circle
; equispaced
. The last option is suggested when the poset has more than one maximal or minimal elements. The function is used by the plot methods defined in the package (see plot.cover
).