two2one {blockmodeling} | R Documentation |
Coverting two mode networks from two to one mode matrix representation and vice versa. If a two-mode matrix is converted in-to a one-mode matrix, the original two-mode matrix lies in the upper right corner of the one-mode matrix.
two2one(M, clu = NULL) one2two(M, clu = NULL)
M |
A matrix representing the (usually valued) network. |
clu |
A partition. Each unique value represents one cluster. This should be a list of two vectors, one for each mode. |
Functions returns list with elemets: a mode mode matrix with the two mode network in its upper left corner.
M |
The matrix |
clu |
The partition, in form appropriate for the mode of the matrix |
Aleš Žiberna
crit.fun
, opt.par
, opt.random.par
, plot.mat
#generating a simple network corresponding to the simple Sum of squares #structural equivalence with blockmodel: # null com # null null n<-c(7,13) net<-matrix(NA,nrow=n[1],ncol=n[2]) clu<-list(rep(1:2,times=c(3,4)),rep(1:2,times=c(5,8))) tclu<-lapply(clu,table) net[clu[[1]]==1,clu[[2]]==1]<-rnorm(n=tclu[[1]][1]*tclu[[2]][1], mean=0,sd=1) net[clu[[1]]==1,clu[[2]]==2]<-rnorm(n=tclu[[1]][1]*tclu[[2]][2], mean=4,sd=1) net[clu[[1]]==2,clu[[2]]==1]<-rnorm(n=tclu[[1]][2]*tclu[[2]][1], mean=4,sd=1) net[clu[[1]]==2,clu[[2]]==2]<-rnorm(n=tclu[[1]][2]*tclu[[2]][2], mean=0,sd=1) plot.mat(net,clu=clu) #two mode matrix of a two mode network #converting to one mode network M1<-two2one(net)$M plot.mat(M1,clu=two2one(net)$clu) #plotting one mode matrix plot.mat(one2two(M1,clu=clu)$M,clu=clu) #converting one to two mode matix and ploting