mode_transformation function

2-mode to 1-mode transformation

This function is a wrapper to the bipartite_projection

function from the 'igraph' package. It transforms a bipartite (2-mode) network to two 1-mode networks. It is recommended to use it as an analysis tool for a bipartite network that was obtained from extract_mesolevel.

mode_transformation(x, which = c("both", "high", "low"))

Arguments

• x: a bipartite graph object. Data must be bipartite and must not be multilevel
• which: one of "both", "high" or "low". High indicates to do the transformation to the higher level. Low indicates to do the transformation to the lower level. Both returns a list with both networks.

Returns

If which is set to "both" (default), returns a list with two generated networks. If which is set to "high" or "low", returns a graph object.

Details

The function counts 1 edge when two vertices of the higher level share a vertex of the lower level and 1 edge when two vertices of the lower level are affiliated to the same vertex in the higher level.

Examples

# First, extract the mesolevel of the multilevel network
affiliation <- extract_mesolevel(linked_sim)

# To obtain both transformed networks
transformed <- mode_transformation(affiliation)

# To obtain just one transformed network
high_transformed <- mode_transformation(affiliation, which = "high")

Author(s)

Neylson Crepalde, neylsoncrepalde@gmail.com