+
+
+merge.graph <- function(graphs) {
+ library(colorspace)
+ ng <- graph.union(graphs, byname=T)
+ V.weight <- V(ng)$weight_1
+ E.weight <- E(ng)$weight_1
+ cols <- rainbow(length(graphs))
+ V.color <- rep(cols[1], length(V.weight))
+ for (i in 2:length(graphs)) {
+ tw <- paste('weight_', i, sep='')
+ tocomp <- get.vertex.attribute(ng,tw)
+ totest <- intersect(which(!is.na(V.weight)), which(!is.na(tocomp)))
+ maxmat <- cbind(V.weight[totest], tocomp[totest])
+ resmax <- apply(maxmat, 1, which.max)
+ ncolor <- c(cols[(i-1)], cols[i])
+ #rbgcol1 <- col2rgb(cols[(i-1)])
+ #rbgcol1 <- rbgcol1/255
+ #rgbcol1 <- RGB(rbgcol1[1],rbgcol1[2],rbgcol1[3])
+ rbgcol2 <- col2rgb(cols[i])
+ rbgcol2 <- rbgcol2/255
+ #rgbcol2 <- RGB(rbgcol2[1],rbgcol2[2],rbgcol2[3])
+ for (j in totest) {
+ alpha <- tocomp[j] /(V.weight[j] + tocomp[j])
+ rbgcol1 <- col2rgb(V.color[j])
+ rbgcol1 <- rbgcol1/255
+ #mix.col <- mixcolor(alpha,rbgcol1, rbgcol2)
+ mix.col <- mixcolor(alpha, RGB(rbgcol1[1],rbgcol1[2],rbgcol1[3]), RGB(rbgcol2[1],rbgcol2[2],rbgcol2[3]))
+ V.color[j] <- adjustcolor(hex(mix.col), 0.6)
+ }
+ #to.change <- totest[which(resmax == 2)]
+ #V.color[to.change] <- cols[i]
+ V.weight[totest] <- apply(maxmat, 1, max)
+ nas <- which(is.na(V.weight))
+ nas2 <- which(is.na(tocomp))
+ fr2 <- setdiff(nas,nas2)
+ V.weight[fr2] <- tocomp[fr2]
+ V.color[fr2] <- cols[i]
+ tocomp <- get.edge.attribute(ng, tw)
+ totest <- intersect(which(!is.na(E.weight)), which(!is.na(tocomp)))
+ maxmat <- cbind(E.weight[totest], tocomp[totest])
+ resmax <- apply(maxmat, 1, which.max)
+ E.weight[totest] <- apply(maxmat, 1, max)
+ nas <- which(is.na(E.weight))
+ nas2 <- which(is.na(tocomp))
+ fr2 <- setdiff(nas,nas2)
+ E.weight[fr2] <- tocomp[fr2]
+ }
+ V(ng)$weight <- V.weight
+ V(ng)$color <- V.color
+ E(ng)$weight <- E.weight
+ ng
+}