在 R 中结合 ggballoonplot 和树状图

Question

我有一个使用 ggpballoonplot 包的简单气球图：

ggballoonplot(X, x = "cluster", y = "marker", size = "Relative.Expression",
              fill = "Median.Intensity", 
              ggtheme = theme_classic())

我想知道是否可以添加树状图并以此为基础组织气球图？我知道您可以使用 corrplot 做类似的事情，如在 Dendrogram with Corrplot (R) 中看到的，但正在努力将其应用于 ggballoonplot 函数？

Answer 1

经过多次尝试，我发现结合两者的最佳方法是：

### Build the dendrogram
dend <- as.dendrogram(hclust(d = dist(x = X)))
dendro.plot <- ggdendrogram(dend,rotate = TRUE)

### Use dendrogram order to order column
order <- order.dendrogram(dend) # dendrogram order
X$marker <- factor(x = X$marker,levels = X$marker[order],ordered = TRUE)

### then use grid to combine the two 
grid.newpage()
print(balloon.plot, vp = viewport(x = 0.4, y = 0.45, width = 0.8, height = 0.76))
print(dend, vp = viewport(x = 0.885, y = 0.435, width = 0.2, height = 0.84))

## requires trial and error to get it into the right position. 
## Also ensure that xticks and yticks and labels are set to blank.

欢迎提供替代解决方案。

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