diagram: Plot the Hasse Diagram of a set of ordered relations

In mplex/multiplex: Algebraic Tools for the Analysis of Multiple Social Networks

Plot the Hasse Diagram of a set of ordered relations

Description

A function to plot the Hasse Diagram of partially ordered relations.

Usage

diagram(x, attrs = NULL, main = NULL, incmp, cex.main, bg, mar, shape, 
       col, col0, fcol, ecol, lty, lbs, ffamily, fstyle, fsize, 
       col.main, sep, ...)

Arguments

x	a matrix representing ordered relations
attrs	(optional) attributes of the diagram
main	(optional) title of the diagram
incmp	(optional and logical) whether or not the incomparable elements should be included in the lattice diagram
cex.main	(optional) size of the diagram's title
bg	(optional) the background color of the diagram
mar	(optional) the margins of the plot
shape	(optional) the shape of the vertices
col	(optional) the color of the vertices
col0	(optional) the color of the vertices' contour
fcol	(optional) the color of the text's vertices
ecol	(optional) the color of the edges
lty	(optional) the shape of the edges
lbs	(optional) labels of the elements in the partially ordered set
ffamily	(optional) the font family of the vertex labels
fstyle	(optional) the font style of the vertex labels with options: ‘bold’, ‘italic’, ‘bolditalic’
fsize	(optional) the font size of the vertex labels
col.main	(optional) the font color of the main title
sep	(optional) the pair separator for the pairwise relations inside intents and extents
...	(optional) additional graphical items

Details

An example of ordered relations is found in the partial order table of relations, which is product of the 'strings' option in the partial.order function. Another set of ordered relations comes from the table produced on Galois derivations in the mentioned function.

In either case this function plot either the partial order or a linear order diagram, depending on the results as Hasse diagrams.

Value

A Hasse diagram of the partial order relation.

Warning

This function requires that the Rgraphviz package is available.

Note

Note that if the elements of the partial order are not labelled, Roman numerals will be given to each element.

Author(s)

Antonio Rivero Ostoic

See Also

partial.order, as.strings, strings, diagram.levels, galois.

Examples

## load the data
data("incubA")

## given e.g. a partial order table in the object 'po'
po <- partial.order(as.strings(incubA$IM), type="strings")


## plot the order relation as a Hasse diagram.
## Not run: if(require(Rgraphviz)) {
plot(diagram(po))
}
## End(Not run)

mplex/multiplex documentation built on April 9, 2024, 3:12 a.m.