This functions takes a list of igraph objects and convert it to a 'mgraph' object.
Examples
# Read a vector of files
#
if (FALSE) { # \dontrun{
fileName <- c(system.file("extdata", package = "multiweb"))
dn <- list.files("inst/extdata",pattern = "^Kefi2015.*\\.txt$")
g <- readNetwork(dn,"inst/extdata", skipColumn = 2)
fromIgraphToMgraph(g,c("Negative","Positive","Antagonistic"))
} # }