Nothing
get_quantiles_PPI <-
function(scaled_node_score,scaled_edge_score,PPI,klist,pop_size){
# The function to get the "node_score_term" and "edge_score_term" of a sub-network denoted by "vector"
# "vector" is a binary vector with length equal to the size of the whole network.
# An element of value "1" indicates the inclusion of that gene in the selected sub-network.
node_edge<-function(sub){
n<-length(sub)
node_score<-sum(scaled_node_score[sub])/sqrt(n)
edges<- PPI[,1] %in% sub & PPI[,2] %in% sub
m<-sum(edges)
edge_score<-sum(scaled_edge_score[edges])/sqrt(m)
return(c(node_score,edge_score))
}
n<-length(scaled_node_score)
all_genes<-names(scaled_node_score)
edge_score_term<-vector(length=length(klist),mode="list")
node_score_term<-vector(length=length(klist),mode="list")
save_sub<-NULL
for(i in 1:length(klist)){
k<-klist[i]
for(j in 1:pop_size){
sub<-random_network_sampling_PPI(k,PPI,all_genes)
node_edge_score<-node_edge(sub)
node_score_term[[i]][j]<-node_edge_score[1]
edge_score_term[[i]][j]<-node_edge_score[2]
if(is.na(edge_score_term[[i]][j])) save_sub<-sub
print(c(i,j))
}
}
log_abs_edge_node_ratio <- vector(length=length(klist),mode="list")
for(i in 1:length(klist)){
log_abs_edge_node_ratio[[i]] <- log10(abs(edge_score_term[[i]]/node_score_term[[i]]))
}
b <- NULL
for(i in 1:length(klist)){
a <- summary(log_abs_edge_node_ratio[[i]])
b <- rbind(b,a)
}
ratio <- apply(b,2,mean)[-4]
lambda <- sort(1/(1+10^ratio))
names(lambda)<-names(ratio)
return(list(ratio,lambda))
}
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