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dual_dendogram_tile_plot <- function(data.matrix, main="Title"){ | |
#Dual dendrogram ############ | |
x <- data.matrix | |
dd.col <- as.dendrogram(hclust(method="ward",dist(x))) | |
col.ord <- order.dendrogram(dd.col) | |
dd.row <- as.dendrogram(hclust(method="ward",dist(t(x)))) | |
row.ord <- order.dendrogram(dd.row) | |
xx <- data.matrix[col.ord, row.ord] | |
xx_names <- attr(xx, "dimnames") | |
df <- as.data.frame(xx) | |
colnames(df) <- xx_names[[2]] | |
df$y.variable <- xx_names[[1]] | |
df$y.variable <- with(df, factor(y.variable, levels=y.variable, ordered=TRUE)) | |
mdf <- melt(df, id.vars="y.variable") | |
### Use ggdendro to extract dendrogram data ### | |
ddata_x <- dendro_data(dd.row) | |
ddata_y <- dendro_data(dd.col) | |
### Create plot components ### | |
# Heatmap | |
p1 <- ggplot(mdf,xlab="",ylab="", aes(x=variable, y=y.variable)) + | |
geom_tile(aes(fill=value))+ | |
theme(axis.text.x=element_text(angle=90,hjust=0), | |
axis.text.y=element_text(hjust=0), | |
legend.position="bottom", | |
plot.margin=unit(c(0,0,1,1), "cm"))+ | |
scale_x_discrete(expand = c(0, 0)) + scale_y_discrete(expand = c(0, 0)) | |
# Dendrogram 1 | |
p2 <- ggplot(segment(ddata_x)) + | |
geom_segment(aes(x=x, y=y, xend=xend, yend=yend)) + | |
theme_none + theme(axis.title.x=element_blank(), | |
plot.margin=unit(c(1,1,0,1), "cm"))+ | |
scale_x_continuous(expand = c(0, 0)) + scale_y_continuous(expand = c(0, 0)) | |
# Dendrogram 2 | |
p3 <- ggplot(segment(ddata_y)) + | |
geom_segment(aes(x=x, y=y, xend=xend, yend=yend)) + | |
coord_flip() + theme_none + theme(plot.margin=unit(c(1,1,1,0), "cm"))+ | |
scale_x_continuous(expand = c(0, 0)) + scale_y_continuous(expand = c(0, 0)) | |
gp1 <- ggplotGrob(p1) | |
gp2 <- ggplotGrob(p2) | |
gp3 <- ggplotGrob(p3) | |
# maxWidth = grid::unit.pmax(gp1$widths[2:3], gp2$widths[2:3]) | |
# maxHeight = grid::unit.pmax(gp1$heights[c(2,4,5)], gp3$heights[c(2,4,5)]) | |
# gp1$widths[2:3] <- as.list(maxWidth) | |
# gp2$widths[2:3] <- as.list(maxWidth) | |
# gp1$heights[c(2,4,5)] <- as.list(maxHeight) | |
# gp3$heights[c(2,4,5)] <- as.list(maxHeight) | |
# grid.arrange(gp2,grid.text(main), gp1,gp3, ncol=2, heights=c(5,25), widths=c(25,5)) | |
g <- gtable_add_cols(gp1, unit(3,"in")) | |
g <- gtable_add_grob(g, gp3, | |
t = 2, l=ncol(g), b=3, r=ncol(g)) | |
g <- gtable_add_rows(g, unit(3,"in"), 0) | |
g <- gtable_add_grob(g, gp2, | |
t = 1, l=4, b=1, r=4) | |
grid.newpage() | |
grid.draw(g) | |
} |
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