frag.get.layers {archeofrag} | R Documentation |
Extracts the subgraph of each selected stratigraphic layer (or any other type of archaeological spatial unit).
frag.get.layers(graph, layer.attr, sel.layers)
graph |
An undirected |
layer.attr |
Character. The name of the vertices attribute giving the layer of each fragment. |
sel.layers |
Character. The identifier(s) of the stratigraphic layers to retrieve. |
This function is only a convenient function to extract the subgraphs of selected stratigraphic layers (or any other type of archaeological spatial unit).
A graph is created for each layer in the vertex attribute given by the layer.attr
argument.
A list with a graph for each selected stratigraphic layer.
Sebastien Plutniak <sebastien.plutniak at posteo.net>
g <- frag.simul.process(n.components=20, vertices=50, disturbance = .15)
igraph::V(g)$layers <- c(rep("layer1", 20), rep("layer2", 20), rep("layer3", 10))
frag.get.layers(g, layer.attr="layers", sel.layers=c("layer1", "layer2"))