dad (version 4.1.5)

mtgcomponents: Components of upper scale of a vertex

Description

For a vertex in an object of class foldermtg, computes its decomposition into vertices of an upper scale.

Usage

mtgcomponents(x, vertex, scale)

Value

A character vector, containing the idendifiers of the components of vertex.

If there is no component, then the returned vector is empty.

Arguments

x

an object of class foldermtg.

vertex

character. The identifier of a vertex. These identifiers are the rownames of the data frame x$topology.

scale

integer. The scale of the components of vertex which will be returned.

Author

Rachid Boumaza, Pierre Santagostini, Smail Yousfi, Gilles Hunault, Sabine Demotes-Mainard

Details

If vertex is a vertex of scale i, then scale (the scale of the returned components of vertex) must be higher than i. For example, if vertex is a vertex of scale 2, then scale > 2, for instance scale = 3. The returned components are then vertices of scale 3 which have a decomposition relationship with vertex.

References

Pradal, C., Godin, C. and Cokelaer, T. (2023). MTG user guide

See Also

read.mtg: reads a MTG file and builds an object of class foldermtg.

mtgorder, mtgrank.

Examples

mtgfile <- system.file("extdata/plant1.mtg", package = "dad")
xmtg <- read.mtg(mtgfile)

# Vertex of class "P" (plant, of scale 1), components of class 2 (axes: "A")
mtgcomponents(xmtg, vertex = "v01", scale = 2)

# Vertex of class "P" (plant, of scale 1), components of class 3 ("O", "M" and "I")
mtgcomponents(xmtg, vertex = "v01", scale = 3)

# Vertex of class "A" (stem, of scale 2), components of class 3 ("O", "M" and "I")
mtgcomponents(xmtg, vertex = "v12", scale = 3)