multinet.attributes | R Documentation |
These functions are used to assign and retrieve values to/from actors, vertices.
add_attributes_ml(n, attributes, type="string", target="actor", layer="", layer1="", layer2="") attributes_ml(n, target="actor") get_values_ml(n, attribute, actors=character(0), vertices =character(0), edges=character(0)) set_values_ml(n, attribute, actors=character(0), vertices=character(0), edges=character(0), values)
n |
A multilayer network. |
attributes |
Name(s) of the attributes to be created. |
target |
Can be "actor" (attributes attached to actors), "vertex" (attributes attached to vertices) or "edge" (attributes attached to edges). Layer attributes are not available in this version. |
type |
Can be "string" or "numeric". |
layer |
This can be specified only for targets "vertex" (so that the attribute exists only for the vertices in that layer) or "edge" (in which case the attribute applies to intra-layer edges in that layer). |
layer1 |
This can be specified only for target "edge", together with layer2, so that the attribute applies to inter-layer edges from layer1 to layer2. If |
layer2 |
See layer1. |
attribute |
The name of the attribute to be updated. |
actors |
A dataframe containing a vector of actor names ("actor"). If this is specified, layers, vertices and edges should not. |
vertices |
A dataframe of vertices to be updated. The first column specifies actor names, the second layer names. If this is specified, actors, layers and edges should not. |
edges |
A dataframe containing the vertices to be connected. The four columns must contain, in this order: actor1 name, layer1 name, actor2 name, layer2 name. If this is specified, actors, layers and vertices should not. |
values |
A vector of values to be set for the corresponding actors, vertices or edges. |
attributes_ml
returns a data frame with columns: "name", and "type". If vertex attributes are listed, an additional "layer" column is used. If edge attributes are listed, two columns "layer1" and "layer2" are included.
get_values_ml
returns a data frame with the values for the requested objects.
multinet.properties, multinet.edge_directionality
net <- ml_aucs() attributes_ml(net) # actor attributes, of string type (default) add_attributes_ml(net,c("name","surname")) # a numeric attribute associated to the layers (not available in this version) # add_attributes_ml(net,"num vertices",type="numeric",target="layer") # attributes for vertices on the facebook layer add_attributes_ml(net,"username",type="string",target="vertex",layer="facebook") # attributes for edges on the work layer add_attributes_ml(net,"strength",type="numeric",target="edge",layer="work") # listing the attributes attributes_ml(net) # attributes_ml(net,"layer") # not available in this version attributes_ml(net,"vertex") attributes_ml(net,"edge") # setting some values for the newly created attributes set_values_ml(net,"name",actors=data.frame(actor=c("U54","U139")),values=c("John","Johanna")) e <- data.frame( c("U139","U139"), c("work","work"), c("U71","U97"), c("work","work")) set_values_ml(net,"strength",edges=e,values=.47) # getting the values back get_values_ml(net,"name",actors=data.frame(actor="U139")) get_values_ml(net,"strength",edges=e) # setting attributes based on network properties: create a "degree" # attribute and set its value to the degree of each actor actors_ml(net)$actor -> a layers_ml(net) -> l degree_ml(net,actors=a,layers=l,mode="all") -> d add_attributes_ml(net,target="actor",type="numeric",attributes="degree") set_values_ml(net,attribute="degree",actors=data.frame(actor=a),values=d) get_values_ml(net,attribute="degree",actors=data.frame(actor="U54")) # select actors based on attribute values (e.g., with degree greater than 40) get_values_ml(net,attribute="degree",actors=data.frame(actor=a)) -> values a[values$degree>40] # list all the attributes again attributes_ml(net)
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